On 2 January 2017 at 06:31, Joerg Schilling <schily(a)schily.net> wrote:
David <david(a)kdbarto.org> wrote:
MacOS X is a certified Unix (tm) OS. Not
Unix-Like.
Given that MacOS X is not POSIX compliant, I would call it a UNIX-alike.
Note that passing the certification tests unfortunately does not grant
POSIX compliance :-(
Interesting -- I had always thought that UNIX03 incorporated IEEE
1003.x (
http://www.opengroup.org/openbrand/register/xym0.htm ).
So what is missing and why?
N.
P.S. As UNIX is a registered trademark of X/Open, anything passing
UNIX03 is UNIX by definition.