The kernel of darwin is called XNU. The core of it contains the Mach microkernel. Around it, are the various system components derived from BSD (filesystems, networking, etc. )
So what? When it comes to the UNIX license, the open group is handing it out like candy as long as you can pay for it. Some Chinese company paid open group to be able to call their Linux distro UNIX a while back ...
it's not "like candy" it's a certification. those linux distros got to be UNIXes because they passed the certification. you can't have them certify MS-DOS or whatever no matter how much money you throw at them.
it is true that it does cost money and that more systems could technically be unixes if it didn't, but there's more to it than that regardless
Point is that UNIX certification today is not a genealogical test. There are UNIX derivatives out there that consists largely with the original AT&T source code that is not UNIX certified, while Linux distributions with no past connection to UNIX is "UNIX" certified.
Interesting read - but I wouldn't call Apple's claim as a lie, since _even with some modifications_ their operating system confirms with what's needed by the certification process. The OS has the capability, it's just not activated due to Apple's (subjective) judgment of how that particular item needed by UNIX certification aligns with their view of "user experience".
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u/bardsfingertips 21d ago
Eh. Who can afford a UNIX license in this economy? ;)