[libcxx-commits] [libcxx] [libc++] Avoid including <features.h> on arbitrary platforms (PR #125587)

[Nico Weber via libcxx-commits]

nico wrote:

Looks like this breaks cuda tests on Mac, at least in the gn build: http://45.33.8.238/macm1/100921/step_6.txt

I think the test isn't sufficiently hermetic and the test is to blame, but nevertheless check-clang is broken.

https://github.com/llvm/llvm-project/pull/125587