Jim Grosbach 14cbefa1f6 CMake: Don't run 'git svn' if there is no .git/svn directory.
If the local checkout does not have 'git svn' references set up, don't try
to use 'git svn' for version information.

llvm-svn: 169749
2012-12-10 19:03:37 +00:00
..

See docs/CMake.html for instructions on how to build LLVM with CMake.