[Bug c++/93804] exempt extern "C" headers from -Wredundant-tags

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93804

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>:

https://gcc.gnu.org/g:b73547e40e0b2b6621feec59c9cc65312eddbc6d

commit r10-6824-gb73547e40e0b2b6621feec59c9cc65312eddbc6d
Author: Martin Sebor <msebor@redhat.com>
Date:   Mon Feb 24 10:14:16 2020 -0700

    PR c++/93804 - exempt extern C headers from -Wredundant-tags

    gcc/cp/ChangeLog:

        PR c++/93804
        * parser.c (cp_parser_check_class_key): Avoid issuing -Wredundant-tags
        in shared C/C++ code in headers.

    gcc/testsuite/ChangeLog:

        PR c++/93804
        * g++.dg/warn/Wredundant-tags-4.C: New test.
        * g++.dg/warn/Wredundant-tags-5.C: New test.
        * g++.dg/warn/Wredundant-tags-5.h: New test.