[libcxx-commits] [libcxx] [libc++] stddef.h needs to #include_next for the new clang __need_ macros (PR #86252)

[Louis Dionne via libcxx-commits]

ldionne wrote:

We tried out #86843 internally and it did fix the problem we had encountered. Since it's simpler, I'm closing this PR in favor of #86843.

https://github.com/llvm/llvm-project/pull/86252