1 # Finding valid warning flags for the C Compiler. -*-Autoconf-*-
3 # Copyright (C) 2001, 2002 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 AC_DEFUN([BISON_WARNING],
23 [AC_MSG_CHECKING(whether compiler accepts $1)
24 AC_SUBST(WARNING_CFLAGS)
25 ac_save_CFLAGS="$CFLAGS"
29 WARNING_CFLAGS="$WARNING_CFLAGS $1"
32 CFLAGS="$ac_save_CFLAGS"])