https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116859
--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:e23e5370d5855fc18b9f6f3fb680fcd2971e7a79 commit r15-3904-ge23e5370d5855fc18b9f6f3fb680fcd2971e7a79 Author: Jakub Jelinek <ja...@redhat.com> Date: Thu Sep 26 23:45:22 2024 +0200 libstdc++: Fix freebsd/dragonfly build [PR116859] As reported in the PR, the system headers libstdc++ changes result in -Werror=expansion-to-defined errors on FreeBSD and supposedly on DragonFly too. The following patch fixes those by performing the preprocessor test right away, rather than using defined in the macro definitions. I think neither __ISO_C_VISIBLE nor __LONG_LONG_SUPPORTED should normally change during compilation. 2024-09-26 Jakub Jelinek <ja...@redhat.com> PR libstdc++/116859 * config/os/bsd/freebsd/os_defines.h (_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC, _GLIBCXX_USE_C99_FLOAT_TRANSCENDENTALS_DYNAMIC): Avoid -Wexpansion-to-defined warnings. * config/os/bsd/dragonfly/os_defines.h (_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC): Likewise.
