> If we had such an instrument, Linux would not have been possible, because it's compatible with the Unix APIs. OSX would not have been possible, for the same reasons.
Technically, OS X would be possible, because it is not merely Unix compatible. It is a Unix [1].
They only own Unix the trademark. Unix the copyright is a much more muddy concept that'd probably lead to another trial between Novell and SCO. If SCO won they'd totally go after all the Linux and BSD variants too.
Technically, OS X would be possible, because it is not merely Unix compatible. It is a Unix [1].
[1] https://www.opengroup.org/openbrand/register/brand3648.htm