[PATCH] libstdc++: Define macro before it is first checked

[Thomas Rodgers]

Agreed.

On Thu, Sep 2, 2021 at 10:58 AM Jonathan Wakely <jwakely@redhat.com> wrote:

> Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
>
> libstdc++-v3/ChangeLog:
>
>         * include/bits/atomic_wait.h (_GLIBCXX_HAVE_PLATFORM_WAIT):
>         Define before first attempt to check it.
>
> Tested x86_64-linux and powerpc64-linux, not committed yet.
>
> I think we need this, otherwise __platform_wait_uses_type<T> is false
> for all T.
>
>
>