[Bug libstdc++/116857] [15 Regression] libsupc++ build failure on mingw32: libstdc++-v3/libsupc++/guard.cc:39:1: error: declaration of 'int __cxxabiv1::__cxa_guard_acquire(__guard*) noexcept' has a different exception specifier

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116857

--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Jonathan Wakely
<r...@gcc.gnu.org>:

https://gcc.gnu.org/g:24e2b4cf7902fbdc6c921cfaf9674f844146b3e1

commit r13-9075-g24e2b4cf7902fbdc6c921cfaf9674f844146b3e1
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Thu Sep 26 12:12:13 2024 +0100

    libstdc++: Remove noexcept-specifier from MCF __cxa_guard_acquire
[PR116857]

    This function definition should not be marked as non-throwing, because
    the declaration in <cxxabi.h> is potentially throwing.

    Also fix whitespace.

    libstdc++-v3/ChangeLog:

            PR libstdc++/116857
            * libsupc++/guard.cc (__cxa_guard_acquire): Remove
            _GLIBCXX_NOTHROW to match declaration in <cxxabi.h>.

    (cherry picked from commit efdda203f52b9b55ef9acc8ad668bbd0570a8de6)