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Target 10.4 from 10.5, but getting a crash (Bus Error) right on launch

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Target 10.4 from 10.5, but getting a crash (Bus Error) right on launch

Subject: Target 10.4 from 10.5, but getting a crash (Bus Error) right on launch
From: Brant Sears <email@hidden>
Date: Fri, 11 Dec 2009 12:57:37 -0600

I'm using XCode 3.1.3 on MacOS 10.5.8. I am setting the deployment target and the base SDK to 10.4 and building a universal application. It is a cocoa app.

When I run on 10.5 on either Intel or PowerPC, my app launches successfully. When I attempt to run on 10.4 PPC, I get a "bus error". I installed GDB on the system to try to troubleshoot the problem. I see that it crashes because the symbol _malloc_initalize() is NULL. It is calling _malloc_initialize from inside the callstack from NSApplicationMain() which happens right after launch. So, it does not appear to be a dynamic load issue with not finding a framework or dylib. (My app links to the Cocoa and the Security frameworks.)

What could be wrong?

Thanks.

Brant Sears
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