Basic: Attempt to make version tags work from 'svn export's again.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116268 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Version.cpp b/lib/Basic/Version.cpp
index 67c6c36..545ef53 100644
--- a/lib/Basic/Version.cpp
+++ b/lib/Basic/Version.cpp
@@ -28,6 +28,12 @@
llvm::StringRef URL("");
#endif
+ // If the SVN_REPOSITORY is empty, try to use the SVN keyword. This helps us
+ // pick up a tag in an SVN export, for example.
+ static llvm::StringRef SVNRepository("$URL$");
+ if (URL.empty())
+ URL = SVNRepository.split(':').second;
+
// Strip off version from a build from an integration branch.
URL = URL.slice(0, URL.find("/src/tools/clang"));