8005355: build-infra: Java security signing (need a top-level make target).
Reviewed-by: tbell, ohair
diff --git a/makefiles/BuildJdk.gmk b/makefiles/BuildJdk.gmk
index 1b6da1b..c84b42f 100644
--- a/makefiles/BuildJdk.gmk
+++ b/makefiles/BuildJdk.gmk
@@ -97,6 +97,9 @@
 	+$(MAKE) -f CompileLaunchers.gmk OVERLAY_IMAGES=true
 	+$(MAKE) -f Images.gmk overlay-images
 
+sign-jars:
+	+$(MAKE) -f SignJars.gmk
+
 BINARIES:=$(notdir $(wildcard $(IMAGES_OUTPUTDIR)/j2sdk-image/bin/*))
 INSTALLDIR:=openjdk-$(RELEASE)