Can not build opencv-3.1.0 for iOS

I followed the instructions here: [http://docs.opencv.org/2.4/doc/tutorials/introduction/ios_install/ios_install.html](http://docs.opencv.org/2.4/doc/tutorials/introduction/ios_install/ios_install.html) Linked is the output from running the build script. [Log.txt](https://www.dropbox.com/s/s9ymhsfka8cs7nh/build_ios.txt?dl=0) Thanks in advance.