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Subject: [Bug libstdc++/66146] call_once not C++11-compliant on ppc64le
Date: Thu, 17 Dec 2020 14:03:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D66146

--- Comment #37 from CVS 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:9f9dbc8e09cf48406aa24b6c78735f1a7912cc4e

commit r11-6229-g9f9dbc8e09cf48406aa24b6c78735f1a7912cc4e
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Dec 17 13:16:02 2020 +0000

    libstdc++: Fix -Wunused warning

    As noted in PR 66146 comment 35, there is a new warning in the new
    std::call_once implementation.

    libstdc++-v3/ChangeLog:

            * src/c++11/mutex.cc (std::once_flag::_M_finish): Add
            maybe_unused attribute to variable used in assertion.=