[PATCH] D49672: [CMake] Honor LLVM_EXTERNAL_<proj>_SOURCE_DIR

[David Greene via Phabricator via llvm-commits]

greened added a comment.

Ok, that appears to work.  I'm not sure what I did wrong before.

So my immediate need is satisfied.  However, does this patch still make sense in terms of least surprising behavior?  If so, I would add changes to the documentation as well.


Repository:
  rL LLVM

https://reviews.llvm.org/D49672