# Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
#
# fstack.m4 v1.1 2004-01-30
# Check whether -fstack-protector-all works.
# Robert Connolly - robert@linuxfromscratch.org

AC_DEFUN([_AC_PROG_CC_SSP],
[AC_REQUIRE([AC_PROG_CC])
AC_LANG([C])
ac_save_CFLAGS=$CFLAGS
CFLAGS="-fstack-protector-all $CFLAGS"
AC_CACHE_CHECK(whether $CC accepts -fstack-protector-all, ac_cv_prog_cc_ssp,
	[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ac_cv_prog_cc_ssp=yes],
		[ac_cv_prog_cc_ssp=no])])
AC_SUBST(SSPCFLAGS)
AC_SUBST(SSPNOCFLAGS)
CFLAGS="$ac_save_CFLAGS"
if test $ac_cv_prog_cc_ssp = yes; then
    SSPCFLAGS="-fstack-protector-all"
    SSPNOCFLAGS="-fno-fstack-protector"
else
    SSPCFLAGS=""
    SSPNOCFLAGS=""
fi[]dnl
])# _AC_PROG_CC_SSP

# AC_PROG_CXX_SSP
AC_DEFUN([_AC_PROG_CXX_SSP],
[AC_REQUIRE([AC_PROG_CXX])
AC_LANG([C++])
ac_save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="-fstack-protector-all $CXXFLAGS"
AC_CACHE_CHECK(whether $CXX accepts -fstack-protector-all, ac_cv_prog_cxx_ssp,
	[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ac_cv_prog_cxx_ssp=yes],
		[ac_cv_prog_cxx_ssp=no])])
AC_SUBST(SSPCXXFLAGS)
AC_SUBST(SSPNOCXXFLAGS)
CXXFLAGS="$ac_save_CXXFLAGS"
if test $ac_cv_prog_cxx_ssp = yes; then
    SSPCXXFLAGS="-fstack-protector-all"
    SSPNOCXXFLAGS="-fno-fstack-protector"
else
    SSPCXXFLAGS=""
    SSPNOCXXFLAGS=""
fi[]dnl
])# _AC_PROG_CXX_SSP