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