Fixed fPIC link failure with arm and sparc architectures, fixing issue #757
Added TargetArch.cmake, from
https://github.com/petroules/solar-cmake/blob/master/TargetArch.cmake
//// Prefix header for all source files of the 'CocoaTouchStaticLibrary' target in the 'CocoaTouchStaticLibrary' project.//#ifdef __OBJC__ #import <Foundation/Foundation.h>#endif