Detect that we're building from a git checkout like we do for cvs and svn.
Based on a patch by Nicolas Trangez on the unladen-swallow mailing list!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68187 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed