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