[libcxx-commits] [libcxx] [libc++] Define all CMake configuration features in the same location (PR #115361)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@vitalybuka Do you know who owns the `sanitizer-x86_64-linux-bootstrap-asan` bot & friends? I see them fail on a very large number of our patches for reasons unrelated to libc++, which causes spurious notifications on the PRs.

https://github.com/llvm/llvm-project/pull/115361