disable ssp, does not compile

package/grub/Makefile

@@ -28,6 +28,8 @@ include $(TOPDIR)/mk/package.mk
 $(eval $(call PKG_template,GRUB,grub,$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION}))
 $(eval $(call PKG_template,GRUB_TOOLS,grub-tools,$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION}))
 
+TARGET_CFLAGS:=          $(filter-out -fstack-protector,$(TARGET_CFLAGS))
+
 # core.img is generated via
 # grub-mkimage -O ${GRUB_ARCH} -o core.img -c embed.cfg ${GRUB_MODULES}
 GRUB_MODULES:=		ext2 part_msdos biosdisk