[libc-commits] [libc] [libc] Include CheckCXXCompilerFlag when checking compiler features (PR #118862)

[Tristan Ross via libc-commits]

RossComputerGuy wrote:

> This should probably just go at the top level

Oh, alright. I grepped and had found that it was common to include in `cmake` level.

https://github.com/llvm/llvm-project/pull/118862