Improve version number.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67204 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Makefile b/lib/Driver/Makefile
index fb437d2..4aeba9f 100644
--- a/lib/Driver/Makefile
+++ b/lib/Driver/Makefile
@@ -12,7 +12,7 @@
 BUILD_ARCHIVE = 1
 CXXFLAGS = -fno-rtti
 
-CPPFLAGS += -I$(PROJ_SRC_DIR)/../../include -I$(PROJ_OBJ_DIR)/../../include
+CPPFLAGS += -I$(PROJ_SRC_DIR)/../../include -I$(PROJ_OBJ_DIR)/../../include -DTARGET_TRIPLE='"$(TARGET_TRIPLE)"'
 
 include $(LEVEL)/Makefile.common