On software compatibility unfortunately the actual state (nearly anyone only on GNU/Linux) lead to forget that other OSes exists and many non-POSIX/non-portable

On software compatibility unfortunately the actual state (nearly anyone only on GNU/Linux) lead to forget that other OSes exists and many non-POSIX/non-portable features are more and more used anywhere... That's not an IllumOS/SmartOS or any other unices faults nor something they can really solve...