This comes handy when hacking with different cross
compilers, some of which may or may not have
_FORTIFY_SOURCE turned on by default. This patch
allows us to turn _FORTIFY_SOURCE on by specifying
--with-fortify option at configuration time (or
to turn it off by specifying --without-fortify).
If nothing is specified, default compiler behavior
is assumed.
Signed-off-by: Ilija Hadzic <ihad...@research.bell-labs.com>
---
drivers/staging/usbip/userspace/configure.ac | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/staging/usbip/userspace/configure.ac
b/drivers/staging/usbip/userspace/configure.ac
index 6d52841..2be4060 100644
--- a/drivers/staging/usbip/userspace/configure.ac
+++ b/drivers/staging/usbip/userspace/configure.ac
@@ -91,5 +91,22 @@ AC_ARG_WITH([usbids-dir],
[USBIDS_DIR=$withval], [USBIDS_DIR="/usr/share/hwdata/"])
AC_SUBST([USBIDS_DIR])
+# use _FORTIFY_SOURCE
+AC_MSG_CHECKING([whether to use fortify])
+AC_ARG_WITH([fortify],
+ [AS_HELP_STRING([--with-fortify],
+ [use _FORTIFY_SROUCE option when compiling)])],
+ dnl [ACTION-IF-GIVEN]
+ [if test "$withval" = "yes"; then
+ AC_MSG_RESULT([yes])
+ CFLAGS="$CFLAGS -D_FORTIFY_SOURCE -O"
+ else
+ AC_MSG_RESULT([no])
+ CFLAGS="$CFLAGS -U_FORTIFY_SOURCE"
+ fi
+ ],
+ dnl [ACTION-IF-NOT-GIVEN]
+ [AC_MSG_RESULT([default])])
+
AC_CONFIG_FILES([Makefile libsrc/Makefile src/Makefile])
AC_OUTPUT
--
1.7.12
--
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