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A comment on Working on It (TextMate). Parent comment

Re:Working on It (TextMate) by Zev on Sunday June 14, 2009 @01:35PM (#657315)
OS X wasn't a complete rewrite. It was a "Our rewrite is going to hell, lets buy a new OS to use." Go look up the history of Copland from Apple, its mildly interesting.
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Re:Working on It (TextMate) by tolmasky on Sunday June 14, 2009 @06:13PM (#657628)
Its a rewrite in that they threw out nearly an entire codebase and built it on top of something different. If tomorrow Microsoft said "lets get rid of Vista and build something new on top of Ubuntu", I think it would be fair to call that new version of Windows a rewrite despite them not having written the underlying code. Also, lets not forget that a fair amount of work (understatement) went into Mac OS X post NeXT.
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Re:Working on It (TextMate) by rbanffy on Sunday June 14, 2009 @08:09PM (#657731)
I think this stretches the definition of a rewrite a little beyond the point it should break.

OSX is more like a rebranded descendant of NextStep/OpenStep, just the same as a would-be Microsoft Windows 10 derived from FreeBSD code.

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