https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113376
--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:99a1fe6c12c733fe4923a75a79d09a66ff8abcec commit r15-1255-g99a1fe6c12c733fe4923a75a79d09a66ff8abcec Author: Jonathan Wakely <jwak...@redhat.com> Date: Wed Jun 12 16:47:17 2024 +0100 libstdc++: Fix unwanted #pragma messages from PSTL headers [PR113376] When we rebased the PSTL on upstream, in r14-2109-g3162ca09dbdc2e, a change to how _PSTL_USAGE_WARNINGS is set was missed out, but the change to how it's tested was included. This means that the macro is always defined, so testing it with #ifdef (instead of using #if to test its value) doesn't work as intended. Revert the test to use #if again, since that part of the upstream change was unnecessary in the first place (the macro is always defined, so there's no need to use #ifdef to avoid -Wundef warnings). libstdc++-v3/ChangeLog: PR libstdc++/113376 * include/pstl/pstl_config.h: Use #if instead of #ifdef to test the _PSTL_USAGE_WARNINGS macro.
