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only test for stack smashing protector if we are using gcc;

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use -fstack-protector-all for the test to make sure the guard variable is added.
[from HEAD.]
This commit is contained in:
Alexander Barton 2006-09-09 18:34:00 +00:00
parent cf824dd8e7
commit 6f2f2ecd3b
1 changed files with 17 additions and 18 deletions
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35
configure.in
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@ -8,7 +8,7 @@
# (at your option) any later version.
# Please read the file COPYING, README and AUTHORS for more information.
#
# $Id: configure.in,v 1.118.2.3 2006/08/13 18:21:31 alex Exp $
# $Id: configure.in,v 1.118.2.4 2006/09/09 18:34:00 alex Exp $
#
# -- Initialisation --
@ -56,29 +56,28 @@ AC_C_CONST
# -- Hard coded system and compiler dependencies/features/options ... --
if test "$GCC" = "yes"; then
# We are using the GNU C compiler. Good!
CFLAGS="$CFLAGS -pipe -W -Wall -Wpointer-arith -Wstrict-prototypes"
fi
AC_DEFUN([GCC_STACK_PROTECT_CC],[
ssp_cc=yes
if test "X$CC" != "X"; then
AC_MSG_CHECKING([whether ${CC} accepts -fstack-protector])
ssp_old_cflags="$CFLAGS"
CFLAGS="$CFLAGS -fstack-protector"
AC_TRY_LINK(,,, ssp_cc=no)
echo $ssp_cc
if test "X$ssp_cc" = "Xno"; then
CFLAGS="$ssp_old_cflags"
else
# we use -fstack-protector-all for the test to enfoce the use of the guard variable
AC_MSG_CHECKING([whether ${CC} accepts -fstack-protector])
ssp_old_cflags="$CFLAGS"
CFLAGS="$CFLAGS -fstack-protector-all"
AC_TRY_LINK(,,, ssp_cc=no)
echo $ssp_cc
CFLAGS="$ssp_old_cflags"
if test "X$ssp_cc" = "Xyes"; then
CFLAGS="$CFLAGS -fstack-protector"
AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
fi
fi
])
GCC_STACK_PROTECT_CC
if test "$GCC" = "yes"; then
# We are using the GNU C compiler. Good!
CFLAGS="$CFLAGS -pipe -W -Wall -Wpointer-arith -Wstrict-prototypes"
GCC_STACK_PROTECT_CC
fi
case "$target_os" in
hpux*)