[Bug c/68024] Diagnose variadic functions defined without prototypes

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68024

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Wed Oct 21 17:30:20 2015
New Revision: 229131

URL: https://gcc.gnu.org/viewcvs?rev=229131&root=gcc&view=rev
Log:
        PR c/68024
        * c-decl.c (start_function): Warn about vararg functions without
        a prototype.

        * gcc.dg/pr68024.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr68024.c
Modified:
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-decl.c
    trunk/gcc/testsuite/ChangeLog