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

[Mark de Wever via libcxx-commits]

https://github.com/mordante requested changes to this pull request.

Thanks for this improvement. Does the current version still work when using modules from the build directory?

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