@SuperDicq @nyx Yeah, that one's 100% a non-issue and not what POSIXLY_CORRECT is even about, just try it.

You're just supposed to avoid it when writing portable code, but effectively still can.

POSIX isn't there to tie down the OS, specially when a lot of things are out of scope (like so glad system management like init systems are out of scope, in fact Linux Standard Base really should have taken a hint there).