https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123406
--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jonathan Wakely <[email protected]>: https://gcc.gnu.org/g:412eb96b1ca384f4bebe996dba341decbc42362c commit r16-6554-g412eb96b1ca384f4bebe996dba341decbc42362c Author: Jonathan Wakely <[email protected]> Date: Tue Jan 6 14:00:09 2026 +0000 libstdc++: Override detection of flockfile support in newlib [PR123406] As explained in the PR, flockfile and funlockfile are always declared by newlib and there's no easy way to detect whether they're actually defined. Ensure that ac_stdio_locking=no gets set for non-cygwin newlib targets. libstdc++-v3/ChangeLog: PR libstdc++/123406 * acinclude.m4 (GLIBCXX_CHECK_STDIO_LOCKING): Override detection of flockfile for non-cygwin newlib targets. * configure: Regenerate. Reviewed-by: Tomasz KamiÅski <[email protected]>
