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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/107886] Problem witch std::latch,
 std::binary_semaphores in C++20
Date: Mon, 28 Nov 2022 16:03:12 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107886

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jamaika from comment #11)
> without #define __cpp_lib_atomic_wait 201907L

You should not be defining this anyway, it's defined by the library when the
feature is supported. You can't change that. Don't ever define these __cpp_*
macros.


(In reply to Jamaika from comment #12)
> with 'latch.h'

This is a third-party header that defines its own std::latch, it has nothin=
g to
do with GCC.=