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

AC_DEFUN([_AC_PROG_CC_FPIE],
[AC_REQUIRE([AC_PROG_CC])
AC_LANG([C])
ac_save_CFLAGS=$CFLAGS
CFLAGS="-pie -fPIE $CFLAGS"
AC_CACHE_CHECK(whether $CC accepts -pie -fPIE, ac_cv_prog_cc_fpie,
	[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ac_cv_prog_cc_fpie=yes],
		[ac_cv_prog_cc_fpie=no])])
AC_SUBST(FPIECFLAGS)
AC_SUBST(PIELDFLAGS)
CFLAGS="$ac_save_CFLAGS"
if test $ac_cv_prog_cc_fpie = yes; then
    FPIECFLAGS="-pie -fPIE"
    PIELDFLAGS="-pie"
else
    FPIECFLAGS=""
    PIELDFLAGS=""
fi[]dnl
])# _AC_PROG_CC_FPIE

# AC_PROG_CXX_FPIE
AC_DEFUN([_AC_PROG_CXX_FPIE],
[AC_REQUIRE([AC_PROG_CXX])
AC_LANG([C++])
ac_save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="-pie -fPIE $CXXFLAGS"
AC_CACHE_CHECK(whether $CXX accepts -pie -fPIE, ac_cv_prog_cxx_fpie,
	[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ac_cv_prog_cxx_fpie=yes],
		[ac_cv_prog_cxx_fpie=no])])
AC_SUBST(FPIECXXFLAGS)
AC_SUBST(PIELDFLAGS)
CXXFLAGS="$ac_save_CXXFLAGS"
if test $ac_cv_prog_cxx_fpie = yes; then
    FPIECXXFLAGS="-pie -fPIE"
    PIELDFLAGS="-pie"
else
    FPIECXXFLAGS=""
    PIELDFLAGS=""
fi[]dnl
])# _AC_PROG_CXX_FPIE