4-Way Fat Binaries, 10.4 through 10.5

June 2, 2009
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I’ve seen this question come up several times in the past week: “How do I build a single Cocoa application that runs on both 10.4 and 10.5, and runs 64-bit where possible.” Easy. Copy and paste the following settings into your project or target settings as appropriate: SDKROOT = macosx10.5 MACOSX_DEPLOYMENT_TARGET = 10.5 MACOSX_DEPLOYMENT_TARGET[arch=ppc] = […]