--- a/hotspot/make/bsd/makefiles/gcc.make	Wed Aug 13 13:05:04 2014 -0700
+++ b/hotspot/make/bsd/makefiles/gcc.make	Wed Aug 13 23:33:33 2014 +0000
@@ -508,13 +508,9 @@
 
 ifeq ($(USE_CLANG),)
   # Enable bounds checking.
-  # _FORTIFY_SOURCE appears in GCC 4.0+
   ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) )" "1"
-    # compile time size bounds checks
-    FASTDEBUG_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
-
-    # and runtime size bounds checks and paranoid stack smashing checks.
-    DEBUG_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-all --param ssp-buffer-size=1
+    # stack smashing checks.
+    DEBUG_CFLAGS += -fstack-protector-all --param ssp-buffer-size=1
   endif
 endif