diff -r 71c04702a3d5 -r 72e3ae9a25eb make/CompileDemos.gmk
--- a/make/CompileDemos.gmk	Tue Sep 12 19:03:39 2017 +0200
+++ b/make/CompileDemos.gmk	Tue Sep 12 19:03:56 2017 +0200
@@ -38,8 +38,8 @@
 include ZipArchive.gmk
 
 # Prepare the find cache.
-$(eval $(call FillCacheFind, $(wildcard $(JDK_TOPDIR)/src/demo \
-    $(JDK_TOPDIR)/src/*/demo)))
+$(eval $(call FillCacheFind, $(wildcard $(TOPDIR)/src/demo \
+    $(TOPDIR)/src/*/demo)))
 
 # Append demo goals to this variable.
 TARGETS =
@@ -48,15 +48,15 @@
 # Now every other demo has its own quirks where to put the
 # READMEs and other files.
 
-DEMO_SHARE_SRC := $(JDK_TOPDIR)/src/demo/share
-GLOBAL_VERSION_INFO_RESOURCE := $(JDK_TOPDIR)/src/java.base/windows/native/common/version.rc
+DEMO_SHARE_SRC := $(TOPDIR)/src/demo/share
+GLOBAL_VERSION_INFO_RESOURCE := $(TOPDIR)/src/java.base/windows/native/common/version.rc
 
 DEMO_MANIFEST := $(SUPPORT_OUTPUTDIR)/demos/java-main-manifest.mf
 
 # This rule will be depended on due to the MANIFEST line in SetupBuildDemo
 # and SetupBuildJvmtiDemo.
 $(eval $(call SetupTextFileProcessing, BUILD_JAVA_MANIFEST, \
-  SOURCE_FILES := $(JDK_TOPDIR)/make/data/mainmanifest/manifest.mf, \
+  SOURCE_FILES := $(TOPDIR)/make/data/mainmanifest/manifest.mf, \
   OUTPUT_FILE := $(DEMO_MANIFEST), \
   REPLACEMENTS := \
       @@VERSION_SPECIFICATION@@ => $(VERSION_SPECIFICATION) ; \
@@ -303,7 +303,7 @@
 
 ################################################################################
 # Hook to include the corresponding custom file, if present.
-$(eval $(call IncludeCustomExtension, jdk, CompileDemos.gmk))
+$(eval $(call IncludeCustomExtension, , CompileDemos.gmk))
 
 all: $(TARGETS)
 images: $(IMAGES_TARGETS)