Impossible to submit corrections to Posix standard
spiegelmock.com
spiegelmock.com
Long experience shows that will never happen. There's a lot of code which is effectively unmaintained, because it works. Not enough people will go through the code to add an "if CREATE flag exists" path, and then - once all of the compilers support it - go again through the code and remove the dead code.
Instead, the world will effectively have two different ways to write exactly the same thing, forever.