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		OLDFLAGS="$CFLAGS"
		TESTFLAGS="-fno-strict-overflow"
		CFLAGS="$CFLAGS $TESTFLAGS"
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: Setting $TESTFLAGS" >&5
$as_echo "$as_me: Setting $TESTFLAGS" >&6;}
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: Not setting $TESTFLAGS" >&5
$as_echo "$as_me: Not setting $TESTFLAGS" >&6;}; CFLAGS="$OLDFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
}

# needed for various extensions. define early before autoconf tests

$as_echo "#define _GNU_SOURCE /**/" >>confdefs.h


STATIC=0
# Check whether --enable-static was given.
if test "${enable_static+set}" = set; then :
  enableval=$enable_static;
		if test "x$enableval" = "xyes"; then
			STATIC=1
			{ $as_echo "$as_me:${as_lineno-$LINENO}: Static Build" >&5
$as_echo "$as_me: Static Build" >&6;}
		fi

fi



hardenbuild=1
# Check whether --enable-harden was given.
if test "${enable_harden+set}" = set; then :
  enableval=$enable_harden;
		if test "x$enableval" = "xno"; then
			hardenbuild=0
			{ $as_echo "$as_me:${as_lineno-$LINENO}: Disabling hardened build flags" >&5
$as_echo "$as_me: Disabling hardened build flags" >&6;}
		fi

fi


if test "$hardenbuild" -eq 1; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: Checking for available hardened build flags:" >&5
$as_echo "$as_me: Checking for available hardened build flags:" >&6;}
	# relocation flags don't make sense for static builds
	if test "$STATIC" -ne 1; then
		# pie
		{
		OLDFLAGS="$CFLAGS"
		TESTFLAGS="-fPIE"
		CFLAGS="$CFLAGS $TESTFLAGS"
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: Setting $TESTFLAGS" >&5
$as_echo "$as_me: Setting $TESTFLAGS" >&6;}
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: Not setting $TESTFLAGS" >&5
$as_echo "$as_me: Not setting $TESTFLAGS" >&6;}; CFLAGS="$OLDFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
}

		OLDLDFLAGS="$LDFLAGS"
		TESTFLAGS="-Wl,-pie"
		LDFLAGS="$LDFLAGS $TESTFLAGS"
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: Setting $TESTFLAGS" >&5
$as_echo "$as_me: Setting $TESTFLAGS" >&6;}
else

				LDFLAGS="$OLDLDFLAGS"
				TESTFLAGS="-pie"
				LDFLAGS="$LDFLAGS $TESTFLAGS"
				cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: Setting $TESTFLAGS" >&5
$as_echo "$as_me: Setting $TESTFLAGS" >&6;}
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: Not setting $TESTFLAGS" >&5
$as_echo "$as_me: Not setting $TESTFLAGS" >&6;}; LDFLAGS="$OLDLDFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext


fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
		# readonly elf relocation sections (relro)
		OLDLDFLAGS="$LDFLAGS"
		TESTFLAGS="-Wl,-z,now -Wl,-z,relro"
		LDFLAGS="$LDFLAGS $TESTFLAGS"
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: Setting $TESTFLAGS" >&5
$as_echo "$as_me: Setting $TESTFLAGS" >&6;}
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: Not setting $TESTFLAGS" >&5
$as_echo "$as_me: Not setting $TESTFLAGS" >&6;}; LDFLAGS="$OLDLDFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	fi # non-static
	# stack protector. -strong is good but only in gcc 4.9 or later
	OLDCFLAGS="$CFLAGS"
	TESTFLAGS="-fstack-protector-strong"
	CFLAGS="$CFLAGS $TESTFLAGS"
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: Setting $TESTFLAGS" >&5
$as_echo "$as_me: Setting $TESTFLAGS" >&6;}
else

			CFLAGS="$OLDCFLAGS"
			TESTFLAGS="-fstack-protector --param=ssp-buffer-size=4"
			CFLAGS="$CFLAGS $TESTFLAGS"
			cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :