--- a/jdk/make/sun/net/spi/Makefile	Thu Sep 15 14:10:30 2011 +0100
+++ b/jdk/make/sun/net/spi/Makefile	Fri Sep 16 12:09:04 2011 -0700
@@ -24,6 +24,8 @@
 #
 
 BUILDDIR = ../../..
+SUBDIRS_MAKEFLAGS += JAVAC_WARNINGS_FATAL=true
+
 include $(BUILDDIR)/common/Defs.gmk
 
 SUBDIRS_misc = nameservice