Just ignore them. I suspect they're adding them (to POSIX) for portability of historic software. Here is an issue tracker I've found (Haven't read through it; n

Just ignore them. I suspect they're adding them (to POSIX) for portability of historic software. Here is an issue tracker I've found (Haven't read through it; not interested): https://www.austingroupbugs.net/view.php?id=986 https://www.austingroupbugs.net/view.php?id=986