--- a/jdk/make/com/sun/java/pack/Makefile	Wed Jul 06 11:08:20 2011 -0400
+++ b/jdk/make/com/sun/java/pack/Makefile	Fri Jul 08 10:25:57 2011 -0700
@@ -32,6 +32,8 @@
 LIBRARY = unpack
 PRODUCT = sun
 PGRM = unpack200
+JAVAC_MAX_WARNINGS=true
+JAVAC_WARNINGS_FATAL=true
 include $(BUILDDIR)/common/Defs.gmk
 
 CPLUSPLUSLIBRARY=true