--- old/make/hotspot/lib/CompileGtest.gmk	2017-10-05 11:56:09.352633079 +0200
+++ new/make/hotspot/lib/CompileGtest.gmk	2017-10-05 11:56:09.084637310 +0200
@@ -23,7 +23,7 @@
 # questions.
 #
 
-$(eval $(call IncludeCustomExtension, , hotspot/lib/CompileGtest.gmk))
+$(eval $(call IncludeCustomExtension, hotspot/lib/CompileGtest.gmk))
 
 GTEST_TEST_SRC += $(TOPDIR)/test/hotspot/gtest
 GTEST_LAUNCHER_SRC := $(TOPDIR)/test/hotspot/gtest/gtestLauncher.cpp