Basic: Add support for a build variable to set the repository path that goes
into the Clang version.

llvm-svn: 128595
diff --git a/clang/lib/Basic/Version.cpp b/clang/lib/Basic/Version.cpp
index 9367319..af2f848 100644
--- a/clang/lib/Basic/Version.cpp
+++ b/clang/lib/Basic/Version.cpp
@@ -22,6 +22,9 @@
 namespace clang {
   
 std::string getClangRepositoryPath() {
+#if defined(CLANG_REPOSITORY_STRING)
+  return CLANG_REPOSITORY_STRING;
+#else
 #ifdef SVN_REPOSITORY
   llvm::StringRef URL(SVN_REPOSITORY);
 #else
@@ -45,6 +48,7 @@
     URL = URL.substr(Start + 4);
 
   return URL;
+#endif
 }
 
 std::string getClangRevision() {