[libcxx-commits] [libcxxabi] [libcxxabi] Don't enable -fvisibility=hidden on Windows (PR #207943)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 approved this pull request.

LGTM, but I'm a bit confused how this works with libc++. I don't see any similar guards there.

https://github.com/llvm/llvm-project/pull/207943