[libcxx-commits] [libcxx] [llvm] [libc++] Optionally support filecheck-based tests (PR #165769)

[Aiden Grossman via libcxx-commits]

boomanaiden154 wrote:

If most contributors aren't using it, I can see that definitely being an issue. There is the bootstrapping build in the libc++ CI and premerge does use the bootstrapping build. I guess we could do the following:
1. Bootstrapping build - Just use the FileCheck from the LLVM build.
2. Pure runtimes build - Use system provided FileCheck. Make it easily installable through a pip package but use the actual LLVM implementation since that's best supported.

https://github.com/llvm/llvm-project/pull/165769