--- /dev/null
+# This option enables -fcheck-pointer-bounds -mmpx for stage2 and stage3.
+
+STAGE2_CFLAGS += -fcheck-pointer-bounds -mmpx -frandom-seed=1
+STAGE3_CFLAGS += -fcheck-pointer-bounds -mmpx -frandom-seed=1
+POSTSTAGE1_LDFLAGS += -fcheck-pointer-bounds -mmpx -frandom-seed=1 \
+ -static-libmpx -static-libmpxwrappers \
+ -B$$r/prev-$(TARGET_SUBDIR)/libmpx \
+ -B$$r/prev-$(TARGET_SUBDIR)/libmpx/mpxrt/.libs \
+ -B$$r/prev-$(TARGET_SUBDIR)/libmpx/mpxwrap/.libs