On Sat, 5 Mar 2022 at 20:34, Jonathan Wakely via Libstdc++
<libstdc++@gcc.gnu.org> wrote:
>
> Tested powerpc64le-linux, pushed to trunk.
>
> -- >8 --
>
> This ensures there's no linker error if libstdc++ headers are included
> following a pragma that sets hidden visibility.
>
> Similarly for std::__terminate, which is always-inline so shouldn't
> matter, but it's not wrong to do this anyway.
>
> libstdc++-v3/ChangeLog:
>
>         * include/bits/c++config (__glibcxx_assert_fail): Add visibility
>         attribute.
>         (__terminate): Likewise.

This broke mingw targets. Fixed like so.

Tested x86_64-linux, pushed to trunk.