[PATCH] D57535: [CMake] Use LLVM_ENABLE_PROJECTS as the "single source" of truth when used.

[Shoaib Meenai via Phabricator via llvm-commits]

smeenai added reviewers: phosek, smeenai.
smeenai added a comment.

Would it be equivalent if you changed https://reviews.llvm.org/diffusion/L/browse/llvm/trunk/cmake/modules/AddLLVM.cmake;352949$1007-1009?as=source&blame=off from an `option` to a `FORCE`d cache set? The default value is computed based off the presence of the corresponding `LLVM_EXTERNAL_*_SOURCE_DIR` variable, which will be set for each project in `LLVM_ENABLE_PROJECTS`.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57535/new/

https://reviews.llvm.org/D57535