--- a/hotspot/make/linux/makefiles/rules.make	Thu Sep 10 09:04:41 2009 -0400
+++ b/hotspot/make/linux/makefiles/rules.make	Sat Sep 12 12:50:07 2009 +0100
@@ -122,12 +122,20 @@
 endif
 endif
 
+COMPILE.JAVAC += $(BOOTSTRAP_JAVAC_FLAGS)
+
 SUM = /usr/bin/sum
 
 # 'gmake MAKE_VERBOSE=y' gives all the gory details.
 QUIETLY$(MAKE_VERBOSE)  = @
 RUN.JAR$(MAKE_VERBOSE) += >/dev/null
 
+# Settings for javac
+BOOT_SOURCE_LANGUAGE_VERSION = 6
+BOOT_TARGET_CLASS_VERSION = 6
+JAVAC_FLAGS = -g -encoding ascii
+BOOTSTRAP_JAVAC_FLAGS = $(JAVAC_FLAGS) -source $(BOOT_SOURCE_LANGUAGE_VERSION) -target $(BOOT_TARGET_CLASS_VERSION)
+
 # With parallel makes, print a message at the end of compilation.
 ifeq    ($(findstring j,$(MFLAGS)),j)
 COMPILE_DONE    = && { echo Done with $<; }