https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89402
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- BUILDSTDERR: ../../../../libstdc++-v3/src/c++98/compatibility-ldbl.cc:77:17: warning: 'void _ZNKSt4hashIeEclEe()' specifies less restrictive attribute than its target 'std::size_t std::tr1::hash<_Tp>::operator()(_Tp) const [with _Tp = long double]': 'pure' [-Wmissing-attributes] BUILDSTDERR: 77 | extern "C" void _ZNKSt4hashIeEclEe (void) BUILDSTDERR: | ^~~~~~~~~~~~~~~~~~ BUILDSTDERR: In file included from ../../../../libstdc++-v3/src/c++98/compatibility-ldbl.cc:72: BUILDSTDERR: ../../../../libstdc++-v3/src/c++98/hash-long-double-tr1-aux.cc:35:7: note: 'void _ZNKSt4hashIeEclEe()' target declared here BUILDSTDERR: 35 | hash<long double>::operator()(long double __val) const BUILDSTDERR: | ^~~~~~~~~~~~~~~~~ is what I can see in our ppc64le build log too.
