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PLATFORM AND VERSION iOS Mac OS X 10.7.4 XCode 4.5

Hardware: Mac mini, Model No. A1347, processer: 2.3 GHz, Intel Core i5, memory: 8 GB, 1600 MHz DDR3

DESCRIPTION OF PROBLEM I am responsible to abstract some common codes into a static library for all iOS team in my company, and I have to resolve this problem.

If I want to link with static library A.a and B.a, and both A.a and B.a depends on C.a, the link progress will be failed with duplicate symbol error. Is there any resolution?

This problem can be more complex, all A.a, B.a and C.a have categories, A.a is using 1.0 version of C.a, but B.a is using 2.0 version of C.a.

I have abstracted the situation into a project, which can be accessed by: http://dl.dropbox.com/u/89544999/%E5%BD%92%E6%A1%A3.zip

copperybean
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    Check http://stackoverflow.com/questions/6937501/static-libraries-have-same-function-names-causing-duplicate-symbol-error, http://stackoverflow.com/questions/6940384/how-to-deal-with-symbol-collisions-between-statically-linked-libraries/6940389#6940389 and http://stackoverflow.com/questions/2300867/how-can-i-avoid-duplicate-symbol-errors-in-xcode-with-shared-static-libraries – iDev Dec 03 '12 at 05:56
  • Carl Norum's answer on http://stackoverflow.com/questions/2300867/how-can-i-avoid-duplicate-symbol-errors-in-xcode-with-shared-static-libraries looks best. – Aditya Kumar Pandey Dec 03 '12 at 08:36

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