Ruby

Currently file permission bit features in all Ruby versions include only chmod and (if supported by the target platform's C library) lchmod. lchmod is not supported by all platforms, but where it is not the Posix function fchmodat usually supplies similar functionality. Suggest that this be included.

See http://pubs.opengroup.org/onlinepubs/9699919799/functions/chmod.html