Transferred from: http://becomingindiedev.blogspot.com.es/2014/12/cocos2d-x-v3x-and-xcode-6x-with-arm-64.html
Hi!
When I upgraded to Xcode 6, I noticed then there were lots of linking problems in Cocos2d-x projects The used to work fin E with previous versions of Xcode. The problems is related to the ARM of the architecture. After searching a while, I found hints to the solution, although I were missing a more step-by-step solution. So here it's how I solved it.
1) ADD linker flags for ARM architecture. In your target, select Build Settings > Linking > More Linker flags and set the following flags for Debug and Relea SE for arm64 architecture:
-ljpeg_arm64
-lcurl_arm64
-lpng_arm64
-ltiff_arm64
-lwebp_arm64
-lwebsockets_arm64
-lfreetype_arm64
Edit:this is no longer required from Cocos2d-x v3.4.
2) Add library paths. In your target, select Build Settings > Search Paths > Library Search Paths, and write the following directory for D Ebug and Release.
Yourprojectpath/cocos2d/external
And don ' t forget to set "recursive".
Hope it ' s useful. See you!
Fm
Cocos2d-x v3.x and Xcode 6.x with ARM Architecture