Makefile: Switch Clang Makefiles to always include the top-level Clang Makefile.
 - This eliminates most dependencies on how Clang is installed relative to LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105637 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/examples/clang-interpreter/Makefile b/examples/clang-interpreter/Makefile
index 397a1f9..6683a57 100644
--- a/examples/clang-interpreter/Makefile
+++ b/examples/clang-interpreter/Makefile
@@ -7,7 +7,7 @@
 #
 ##===----------------------------------------------------------------------===##
 
-LEVEL = ../../../..
+CLANG_LEVEL := ../..
 
 TOOLNAME = clang-interpreter
 CPPFLAGS += -I$(PROJ_SRC_DIR)/../../include -I$(PROJ_OBJ_DIR)/../../include
@@ -19,7 +19,7 @@
 # Include this here so we can get the configuration of the targets that have
 # been configured for construction. We have to do this early so we can set up
 # LINK_COMPONENTS before including Makefile.rules
-include $(LEVEL)/Makefile.config
+include $(CLANG_LEVEL)/../../Makefile.config
 
 LINK_COMPONENTS := jit interpreter nativecodegen bitreader bitwriter ipo \
 	selectiondag asmparser
@@ -27,4 +27,4 @@
            clangChecker.a clangAnalysis.a clangRewrite.a  clangAST.a \
            clangParse.a clangLex.a clangBasic.a
 
-include $(LLVM_SRC_ROOT)/Makefile.rules
+include $(CLANG_LEVEL)/Makefile