* installing *source* package ‘RcppXsimd’ ...
** this is package ‘RcppXsimd’ version ‘7.1.6-1’
** package ‘RcppXsimd’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
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-C++20/RcppXsimd/src'
g++ -std=gnu++20 -I"/data/gannet/ripley/R/cxx20/include" -DNDEBUG -I../inst/include -I'/data/gannet/ripley/R/test-dev/Rcpp/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 RcppXsimd.cpp -o RcppXsimd.o
g++ -std=gnu++20 -I"/data/gannet/ripley/R/cxx20/include" -DNDEBUG -I../inst/include -I'/data/gannet/ripley/R/test-dev/Rcpp/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../inst/include -I'/data/gannet/ripley/R/test-dev/Rcpp/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 FeatureDetector/cpu.cpp -o FeatureDetector/cpu.o
In file included from ../inst/include/xsimd/memory/xsimd_alignment.hpp:13,
                 from ../inst/include/xsimd/xsimd.hpp:12,
                 from RcppXsimd.cpp:1:
../inst/include/xsimd/memory/xsimd_aligned_allocator.hpp:72:70: error: ‘const_pointer’ in ‘class std::allocator<void>’ does not name a type [-Wtemplate-body]
   72 |         pointer allocate(size_type n, typename std::allocator<void>::const_pointer hint = 0);
      |                                                                      ^~~~~~~~~~~~~
../inst/include/xsimd/memory/xsimd_aligned_allocator.hpp:173:44: error: ‘const_pointer’ in ‘class std::allocator<void>’ does not name a type [-Wtemplate-body]
  173 |             typename std::allocator<void>::const_pointer) -> pointer
      |                                            ^~~~~~~~~~~~~
make[1]: *** [/data/gannet/ripley/R/cxx20/etc/Makeconf:201: RcppXsimd.o] Error 1
make[1]: Target 'all' not remade because of errors.
make[1]: Leaving directory '/data/gannet/ripley/R/packages/tests-C++20/RcppXsimd/src'
ERROR: compilation failed for package ‘RcppXsimd’
* removing ‘/data/gannet/ripley/R/packages/tests-C++20/RcppXsimd.Rcheck/RcppXsimd’