| dnl SPDX-License-Identifier: GPL-2.0-or-later | |
| dnl Copyright (c) 2014 Oracle and/or its affiliates. All Rights Reserved. | |
| dnl Author: Alexey Kodanev <alexey.kodanev@oracle.com> | |
| AC_DEFUN([LTP_CHECK_CC_WARN_OLDSTYLE],[ | |
| wflag="-Wold-style-definition" | |
| AC_MSG_CHECKING([if $CC supports $wflag]) | |
| backup_cflags="$CFLAGS" | |
| CFLAGS="$CFLAGS $wflag" | |
| AC_LINK_IFELSE( | |
| [AC_LANG_PROGRAM([])], | |
| [GCC_WARN_OLDSTYLE="$wflag"] | |
| [AC_MSG_RESULT([yes])], | |
| [AC_MSG_RESULT([no])] | |
| ) | |
| AC_SUBST(GCC_WARN_OLDSTYLE) | |
| CFLAGS="$backup_cflags" | |
| ]) |