[PATCH] D34560: Completelly disable git/svn version checking if not needed

[Peter Collingbourne via Phabricator via llvm-commits]

pcc added a subscriber: beanz.
pcc added a comment.

Using `LLVM_APPEND_VC_REV` seems fine to me, but we probably want to update the documentation and most likely change the default because right now the VC revision affects ThinLTO cache invalidation, and we shouldn't silently use stale cache entries when clang is upgraded.

@beanz any thoughts?


https://reviews.llvm.org/D34560