Update clang's lit.site.cfg.in in preparation for adding config.llvm_build_modes.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133130 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Makefile b/test/Makefile
index 050c3a5..e5d538b 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -18,7 +18,7 @@
 ifdef VERBOSE
 TESTARGS = -v
 else
-TESTARGS = -s -v 
+TESTARGS = -s -v
 endif
 endif
 
@@ -42,6 +42,7 @@
 	@$(ECHOPATH) s=@LLVM_BINARY_DIR@=$(LLVM_OBJ_ROOT)=g >> lit.tmp
 	@$(ECHOPATH) s=@LLVM_TOOLS_DIR@=$(ToolDir)=g >> lit.tmp
 	@$(ECHOPATH) s=@LLVM_LIBS_DIR@=$(LibDir)=g >> lit.tmp
+	@$(ECHOPATH) s=@LLVM_BUILD_MODE@=$(BuildMode)=g >> lit.tmp
 	@$(ECHOPATH) s=@CLANG_SOURCE_DIR@=$(PROJ_SRC_DIR)/..=g >> lit.tmp
 	@$(ECHOPATH) s=@CLANG_BINARY_DIR@=$(PROJ_OBJ_DIR)/..=g >> lit.tmp
 	@$(ECHOPATH) s=@TARGET_TRIPLE@=$(TARGET_TRIPLE)=g >> lit.tmp