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Recognize Intel only apps on PowerPC machines
Authored by: tooki on Jul 13, '06 08:50:39AM

Just a little bit of computer history:

NeXTStep/OpenStep, the direct ancestors of Mac OS X, used a similar mechanism to show that an application lacked the necessary binary -- it grayed out the application icon. (Back then, the architectures were M68K and i386.)

Oddly, though, Mac OS X doesn't use the same method of storing universal binaries. The NeXT way actually just held a separate binary for each architecture, separated by a folder structure inside the application package. That structure now lives on to separate Classic from native OS X binaries inside an application package.

The new Universal Binary system has the advantage that even single-file executables, like UNIX command-line apps, can be universal.

tooki



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