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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/96284] Outdated C features should be made errors with newer
 standards
Date: Fri, 01 Dec 2023 07:12:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96284

--- Comment #11 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Florian Weimer <fw@gcc.gnu.org>:

https://gcc.gnu.org/g:4ee2aca7ca098cc6e622a9a41e63224af37e6532

commit r14-6034-g4ee2aca7ca098cc6e622a9a41e63224af37e6532
Author: Florian Weimer <fweimer@redhat.com>
Date:   Fri Dec 1 08:10:13 2023 +0100

    c: Turn -Wimplicit-int into a permerror

    Most of these new permerrors are currently not diagnosed in system
    headers.

    gcc/

            PR c/91093
            PR c/96284
            * doc/invoke.texi (Warning Options): Document changes.

    gcc/c/

            * c-decl.cc (warn_defaults_to): Remove.
            (grok_declarator, start_function): Call permerror_opt
            instead of warn_defaults_to.
            (store_parm_decls_oldstyle): Call permerror_opt for
            OPT_Wimplicit_int.

    gcc/testsuite/

            * gcc.dg/permerror-default.c (implicit_int_1, implicit_int_2)
            (implicit_int_3, implicit_int_4): Expect new permerror.
            * gcc.dg/permerror-system.c: Expect a single new permerror.
            * gcc.dg/Wimplicit-int-1.c: Compile with -fpermissive due to
            expected warning.
            * gcc.dg/Wimplicit-int-4.c: Likewise.
            * gcc.dg/Wimplicit-int-1a.c: New test.  Copied from
            gcc.dg/Wimplicit-int-1.c, but expect errors.
            * gcc.dg/Wimplicit-int-4a.c: New test.  Copied from
            gcc.dg/Wimplicit-int-4.c, but expect errors.
            * gcc.dg/gnu23-attr-syntax-2.c: Compile with -fpermissive
            due to expected implicit-int error.
            * gcc.dg/gnu23-attr-syntax-3.c: New test.  Copied from
            gcc.dg/gnu23-attr-syntax-2.c, but expect an error.
            * gcc.dg/pr105635.c: Build with -fpermissive due to implicit
            int.
            * gcc.dg/pr105635-2.c: New test.  Copied from
            gcc.dg/pr105635.c.  Expect implicit int error.
            * gcc.dg/noncompile/pr79758.c: Build with -fpermissive due to
            implicit int.
            * gcc.dg/noncompile/pr79758-2.c: New test.  Copied from
            gcc.dg/noncompile/pr79758.c.  Expect implicit int error.=