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Fwd: Dynamic Linking Error - Xcode 4
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Fwd: Dynamic Linking Error - Xcode 4

  • Subject: Fwd: Dynamic Linking Error - Xcode 4
  • From: Rutvik Choudhary <email@hidden>
  • Date: Tue, 07 Aug 2012 16:03:46 -0500


---------- Forwarded message ----------
From: Rutvik Choudhary <email@hidden>
Date: Tue, Aug 7, 2012 at 3:45 PM
Subject: Re: Dynamic Linking Error - Xcode 4
To: Jens Alfke <email@hidden>


There is an "Dynamic Library Install Name" option in the "Build Settings" tab, is that where I put " the @executable_path/libBox2D.2.1.0.dylib" text? And also, do I do this for every library included?


On Tue, Aug 7, 2012 at 3:39 PM, Jens Alfke <email@hidden> wrote:

On Aug 7, 2012, at 1:20 PM, Rutvik Choudhary <email@hidden> wrote:

>               dyld: Library not loaded: libBox2D.2.1.0.dylib
>                 Referenced from: /Users/****/Documents/Xcode Projects/ProjectName/.../ProjectName.app/Contents/MacOS/ProjectName
>                 Reason: image not found

My guess is that you need to fix up the 'install name' of the library — the path at which it should be searched for when loaded. You can see the existing path by running "otool -D libBox2D.2.1.0.dylib". The "install_name_tool" will replace the install name; see its man page. IIRC, it should be "@executable_path/libBox2D.2.1.0.dylib", which will tell the loader to look for it relative to the app's executable.

(It's always been a mystery to me why Xcode doesn't do this for you; it makes using 3rd party frameworks or dylibs really tricky until you learn the ropes.)

—Jens


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