--- a/jdk/make/common/Defs-linux.gmk	Wed Jul 08 12:07:43 2009 +0800
+++ b/jdk/make/common/Defs-linux.gmk	Wed Jul 08 09:11:24 2009 -0700
@@ -193,7 +193,7 @@
 CPPFLAGS_COMMON += -D_LP64=1
 endif
 
-CPPFLAGS_OPT    = 
+CPPFLAGS_OPT    = -DNDEBUG
 CPPFLAGS_DBG    = -DDEBUG
 ifneq ($(PRODUCT), java)
   CPPFLAGS_DBG    += -DLOGGING