[libcxx-commits] [libcxx] [libcxx] Recognize __UEFI__ predefine (PR #139327)

[Louis Dionne via libcxx-commits]

ldionne wrote:

Is this introducing a new target? Are there going to be other changes for that target?

libc++ requires pre-commit CI to be set up for any newly supported target/platform, so I'd like to understand whether this falls into that category.

https://github.com/llvm/llvm-project/pull/139327