https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77409
--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> --- > The entire point of libssp is to provide this support on systems whose libc > does not include it, so that both -D_FORTIFY_SOURCE and -fstack-protector* > functionality would be available cross-platform. Yes if you used the right headers and the right options. You need to include the correct headers for those applications. Use the option as Jakub mentioned in the redhat bug report and you get the behavior you want. This is not designed to be included behind someone's back which is what you want.