[libcxx-commits] [libcxx] [libc++] Move the locale support headers to __locale_dir/locale_base_api/ (PR #74522)

[Louis Dionne via libcxx-commits]

ldionne wrote:

I think the problem is actually that `libcxx/include/__support/xlocale/__posix_l_fallback.h` is missing an include of `<string.h>`. I'll fix that forward.

https://github.com/llvm/llvm-project/pull/74522