[libc-commits] [libc] [libc][POSIX][pthreads] implemented missing pthread_rwlockattr functions (PR #90249)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

specifically, libc/include/llvm-libc-types/pthread_rwlockattr_t.h needs the addition of the new field.

https://github.com/llvm/llvm-project/pull/90249