1dnl Copyright (c) 2014 Oracle and/or its affiliates. All Rights Reserved.
2dnl
3dnl This program is free software; you can redistribute it and/or
4dnl modify it under the terms of the GNU General Public License as
5dnl published by the Free Software Foundation; either version 2 of
6dnl the License, or (at your option) any later version.
7dnl
8dnl This program is distributed in the hope that it would be useful,
9dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
10dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11dnl GNU General Public License for more details.
12dnl
13dnl You should have received a copy of the GNU General Public License
14dnl along with this program; if not, write the Free Software Foundation,
15dnl Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
16dnl
17dnl Author: Alexey Kodanev <alexey.kodanev@oracle.com>
18dnl
19
20AC_DEFUN([LTP_CHECK_CC_WARN_OLDSTYLE],[dnl
21
22wflag="-Wold-style-definition"
23AC_MSG_CHECKING([if $CC supports $wflag])
24
25backup_cflags="$CFLAGS"
26CFLAGS="$CFLAGS $wflag"
27
28AC_LINK_IFELSE(
29	[AC_LANG_PROGRAM([])],
30	[GCC_WARN_OLDSTYLE="$wflag"]
31	[AC_MSG_RESULT([yes])],
32	[AC_MSG_RESULT([no])]
33)
34
35AC_SUBST(GCC_WARN_OLDSTYLE)
36CFLAGS="$backup_cflags"
37
38])
39