* installing *source* package ‘DatAssim’ ...
** this is package ‘DatAssim’ version ‘1.0’
** package ‘DatAssim’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C compiler: ‘gcc (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2)’
using C++ compiler: ‘g++ (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2)’
make[1]: Entering directory '/data/gannet/ripley/R/packages/tests-CXX20/DatAssim/src'
g++ -std=gnu++20 -I"/data/gannet/ripley/R/cxx20/include" -DNDEBUG  -I'/data/gannet/ripley/R/test-dev/Rcpp/include' -I'/data/gannet/ripley/R/test-dev/RcppArmadillo/include' -I/usr/local/include    -fpic  -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-parentheses -Wp,-D_FORTIFY_SOURCE=3 -fexceptions -fstack-protector-strong -fstack-clash-protection -fcf-protection   -c RcppExports.cpp -o RcppExports.o
g++ -std=gnu++20 -I"/data/gannet/ripley/R/cxx20/include" -DNDEBUG  -I'/data/gannet/ripley/R/test-dev/Rcpp/include' -I'/data/gannet/ripley/R/test-dev/RcppArmadillo/include' -I/usr/local/include    -fpic  -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-parentheses -Wp,-D_FORTIFY_SOURCE=3 -fexceptions -fstack-protector-strong -fstack-clash-protection -fcf-protection   -c datassimcpp.cpp -o datassimcpp.o
datassimcpp.cpp: In function ‘Rcpp::List datassimcpp(arma::mat&, arma::mat&, arma::mat)’:
datassimcpp.cpp:35:17: warning: comparison of integer expressions of different signedness: ‘int’ and ‘const arma::uword’ {aka ‘const unsigned int’} [-Wsign-compare]
   35 |   for (j = 0; j < var.n_rows; j++) {
      |               ~~^~~~~~~~~~~~
datassimcpp.cpp:42:19: warning: comparison of integer expressions of different signedness: ‘int’ and ‘const arma::uword’ {aka ‘const unsigned int’} [-Wsign-compare]
   42 |     for (i = 1; i < pred.n_cols; i++) {
      |                 ~~^~~~~~~~~~~~~
datassimcpp.cpp:45:24: error: reference to ‘span’ is ambiguous
   45 |   arma::mat C = Cov(i, span(0, (i-1)));
      |                        ^~~~
In file included from /usr/include/c++/15/format:51,
                 from /usr/include/c++/15/bits/chrono_io.h:41,
                 from /usr/include/c++/15/chrono:3378,
                 from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo:53,
                 from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/RcppArmadillo/interface/RcppArmadilloForward.h:57,
                 from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/RcppArmadillo.h:32,
                 from datassimcpp.cpp:1:
/usr/include/c++/15/span:60:11: note: candidates are: ‘template<class _Type, long unsigned int _Extent> class std::span’
   60 |     class span;
      |           ^~~~
In file included from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo:155:
/data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo_bits/span.hpp:38:8: note:                 ‘struct arma::span’
   38 | struct span : public span_base<>
      |        ^~~~
datassimcpp.cpp:46:28: error: reference to ‘span’ is ambiguous
   46 |   arma::mat CC = a_corr(k, span(k, (v.n_cols-1)));
      |                            ^~~~
/usr/include/c++/15/span:60:11: note: candidates are: ‘template<class _Type, long unsigned int _Extent> class std::span’
   60 |     class span;
      |           ^~~~
/data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo_bits/span.hpp:38:8: note:                 ‘struct arma::span’
   38 | struct span : public span_base<>
      |        ^~~~
datassimcpp.cpp:51:30: error: reference to ‘span’ is ambiguous
   51 |       a_corr((v.n_cols-1-i), span(k, (v.n_cols-1))) = (1-a(i,j))*a_corr(k, span(k, (v.n_cols-1)));
      |                              ^~~~
/usr/include/c++/15/span:60:11: note: candidates are: ‘template<class _Type, long unsigned int _Extent> class std::span’
   60 |     class span;
      |           ^~~~
/data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo_bits/span.hpp:38:8: note:                 ‘struct arma::span’
   38 | struct span : public span_base<>
      |        ^~~~
datassimcpp.cpp:51:76: error: reference to ‘span’ is ambiguous
   51 |       a_corr((v.n_cols-1-i), span(k, (v.n_cols-1))) = (1-a(i,j))*a_corr(k, span(k, (v.n_cols-1)));
      |                                                                            ^~~~
/usr/include/c++/15/span:60:11: note: candidates are: ‘template<class _Type, long unsigned int _Extent> class std::span’
   60 |     class span;
      |           ^~~~
/data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo_bits/span.hpp:38:8: note:                 ‘struct arma::span’
   38 | struct span : public span_base<>
      |        ^~~~
make[1]: *** [/data/gannet/ripley/R/cxx20/etc/Makeconf:201: datassimcpp.o] Error 1
gcc -I"/data/gannet/ripley/R/cxx20/include" -DNDEBUG  -I'/data/gannet/ripley/R/test-dev/Rcpp/include' -I'/data/gannet/ripley/R/test-dev/RcppArmadillo/include' -I/usr/local/include    -fpic  -g -O2 -Wall -pedantic -mtune=native -Wp,-D_FORTIFY_SOURCE=3 -fexceptions -fstack-protector-strong -fstack-clash-protection -fcf-protection -Werror=implicit-function-declaration -Wstrict-prototypes  -c registerDynamicSymbol.c -o registerDynamicSymbol.o
make[1]: Target 'all' not remade because of errors.
make[1]: Leaving directory '/data/gannet/ripley/R/packages/tests-CXX20/DatAssim/src'
ERROR: compilation failed for package ‘DatAssim’
* removing ‘/data/gannet/ripley/R/packages/tests-CXX20/DatAssim.Rcheck/DatAssim’