[PATCH] D42490: [cmake] Set cmake policy CMP0068 to suppress warnings on OSX

[Chris Bieneman via Phabricator via cfe-commits]

beanz accepted this revision.
beanz added a comment.
This revision is now accepted and ready to land.

Historically we've duplicated `cmake_policy` calls on a per-project basis which we needed to support standalone builds. That said, it would be nice if we had LLVM vend some CMake modules that encapsulated this stuff better. In general I think that cleanup would be ideal to do after we move LLVM to the GitHub mono-repo because then we can create a `cmake/modules` folder at the root of the mono-repo that has common modules useable by all sub-projects.

As-is, this patch is the right way to go.


Repository:
  rC Clang

https://reviews.llvm.org/D42490