[libcxx-commits] [libcxx] Rework Modules CMake to be (more) idiomatic. (PR #84936)

[Mark de Wever via libcxx-commits]

https://github.com/mordante approved this pull request.

Thanks this looks like a nice simplification! I've tested it locally and it works.
LGTM! 

https://github.com/llvm/llvm-project/pull/84936