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Weak Linking Frameworks in Xcode 3.0

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Weak Linking Frameworks in Xcode 3.0

Subject: Weak Linking Frameworks in Xcode 3.0
From: Nick Nallick <email@hidden>
Date: Tue, 4 Dec 2007 12:13:31 -0700

I have a project created with Xcode 2.x under Tiger that I've upgraded to Xcode 3 in Leopard. It weak links a couple frameworks to allow the app to launch on 10.3.9. This all worked fine when built under Tiger. When I build with Xcode 3 under Leopard and launch the app on 10.3.9 I get a number of dyld errors of the form:

undefined reference to .objQuartzCore

The app launches fine under Tiger and Leopard. I'm specifying the weak link by adding statements like the following to the "Other Linker Flags" build setting.

-weak_framework QuartzCore

How do I make this work with Xcode 3? FWIW, all of my errors seem to occur when loading Obj-C elements of QuartzCore.

Thanks,
Nick Nallick
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