[Bug libstdc++/116070] [13/14/15 Regression] broken headers for compile with flags -std=gnu++14 -fconcepts

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116070

--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:5fc9c40fea2481e56bf7bcc994cb40c71e28abb8

commit r15-2272-g5fc9c40fea2481e56bf7bcc994cb40c71e28abb8
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Jul 24 11:32:22 2024 +0100

    libstdc++: Fix std::vector<bool> for -std=gnu++14 -fconcepts [PR116070]

    This questionable combination of flags causes a number of errors. This
    one in std::vector<bool> needs to be fixed in the gcc-13 branch so I'm
    committing it separately to simplify backporting.

    libstdc++-v3/ChangeLog:

            PR libstdc++/116070
            * include/bits/stl_bvector.h: Check feature test macro before
            using is_default_constructible_v.