projects / bison.git / blame
| Commit | Line | Data |
|---|---|---|
| 273a74fa AD |
1 | # Finding valid warning flags for the C Compiler. -*-Autoconf-*- |
| 2 | # | |
| 3 | # Copyright (C) 2001, 2002 Free Software Foundation, Inc. | |
| 4 | # | |
| 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. | |
| 9 | # | |
| 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. | |
| 14 | # | |
| 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., 59 Temple Place, Suite 330, Boston, MA | |
| 18 | # 02111-1307 USA | |
| 19 | ||
| 20 | # serial 1 | |
| 21 | ||
| 22 | AC_DEFUN([BISON_WARNING], | |
| 630f5212 JT |
23 | [AC_MSG_CHECKING(whether compiler accepts $1) |
| 24 | AC_SUBST(WARNING_CFLAGS) | |
| 25 | ac_save_CFLAGS="$CFLAGS" | |
| 26 | CFLAGS="$CFLAGS $1" | |
| 27 | AC_TRY_COMPILE(, | |
| 28 | [int x;], | |
| 29 | WARNING_CFLAGS="$WARNING_CFLAGS $1" | |
| 30 | AC_MSG_RESULT(yes), | |
| 31 | AC_MSG_RESULT(no)) | |
| 32 | CFLAGS="$ac_save_CFLAGS"]) |