I know minix 2.0 and later have posix compatibility. I want test unix-like operating systems on historicial computers like Commodore Amiga, Atari ST and i386 cpu and run posix compatible apps like pkgsrc, x window system and blackbox wm (for 40Mhz higher versions) minix 1.5 is best os for those systems (better than netbsd) but it is not posix-compatible.
How can I port posix to non-posix *nix operating systems ?
Tnx