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I’m making a Mac OS X application that runs on Snow Leopard and later. At the moment the builds are fat and include separate i386 and x86_64 builds.
Is there any real point in doing this, or should I change to just including the x86_64 build?
Early Intel Macs (from 2006) had Core Duo CPUs, which don’t have a 64-bit mode at all. If you turn off the i386 architecture, Macs with those CPUs will no longer be supported by your app.