-# This option enables -fcf-protection -mcet for stage2 and stage3.
+# This option enables -fcf-protection for stage2, stage3 and stage4.
-STAGE2_CFLAGS += -fcf-protection -mcet
-STAGE3_CFLAGS += -fcf-protection -mcet
+STAGE2_CFLAGS += -fcf-protection
+STAGE3_CFLAGS += -fcf-protection
+STAGE4_CFLAGS += -fcf-protection