8264874: Build interim-langtools for HotSpot only if Graal is enabled

Reviewed-by: kvn, erikj

Author: iklam

make/Main.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -92,9 +92,11 @@ $(eval $(call SetupTarget, buildtools-modules, \
     MAKEFILE := CompileModuleTools, \
 ))
 
+# interim-langtools is needed by hotspot only when $(INCLUDE_GRAAL) is true
+GRAAL_INTERIM_LANGTOOLS_true = interim-langtools
 $(eval $(call SetupTarget, buildtools-hotspot, \
     MAKEFILE := CompileToolsHotspot, \
-    DEPS := interim-langtools, \
+    DEPS := $(GRAAL_INTERIM_LANGTOOLS_$(INCLUDE_GRAAL)), \
 ))
 
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