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Shared Objects and dyLibs

Subject: Shared Objects and dyLibs
From: Florent <email@hidden>
Date: Sun, 28 Jan 2001 23:42:15 +0100

Hello,
I am currently working on an OpenAL port to Darwin/MacOS X and I am having some troubles when building a dynamic library.
I used the -dynamiclib option with cc to build the dynamic library, and I got the following error :

ld: common symbols not allowed with MH_DYLIB output format

It seems that global data symbols are not allowed within the dylib. There are a few of them in OpenAL, and they are shared between the different object files.

Is the MH_DYLIB format the closest Darwin equivalent to Linux shared objects (.so) files? And what is the difference between dyLibs and bundles?
Darwin has a quite different dynamic linking system than other unixes... Is there any good documentation or FAQ about dynamic linking on Darwin?

Thanks!

Florent

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