libtool: enable passthrough for SSP options

Signed-off-by: Steven Barth <steven@midlink.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46065 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/libs/libtool/patches/160-passthrough-ssp.patch

+--- a/libltdl/config/ltmain.m4sh
++++ b/libltdl/config/ltmain.m4sh
+@@ -5051,7 +5051,7 @@ func_mode_link ()
+       # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+       -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+       -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+-      -O*|-flto*|-fwhopr*|-fuse-linker-plugin)
++      -O*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*)
+         func_quote_for_eval "$arg"
+ 	arg="$func_quote_for_eval_result"
+         func_append compile_command " $arg"