https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104123
Bug ID: 104123 Summary: 29_atomics/headers/stdatomic.h/c_compat.cc fails on AIX Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: dje at gcc dot gnu.org Target Milestone: --- Target: powerpc-ibm-aix* /nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/ c_compat.cc:95: error: 'size_t' was not declared in this scope; did you mean 'st d::size_t'? /tmp/GCC/powerpc-ibm-aix7.2.3.0/libstdc++-v3/include/stdatomic.h:35: error: temp late argument 1 is invalid /nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/ c_compat.cc:95: error: template argument 2 is invalid /nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/ c_compat.cc:96: error: 'ptrdiff_t' was not declared in this scope; did you mean 'std::ptrdiff_t'? /tmp/GCC/powerpc-ibm-aix7.2.3.0/libstdc++-v3/include/stdatomic.h:35: error: temp late argument 1 is invalid /nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/ c_compat.cc:96: error: template argument 2 is invalid This probably is an issue that AIX 7.2 headers are not C++-safe. This will be fixed in AIX 7.3. Does this testsuite failure need to be addressed in fixincludes or in the stdatomic.h header?