file was built for i386 which is not the architecture being linked (x86_64) while compiling OpenCV2.2 for iOS 4.2 on Mac OSX 10.6

Question

I have been following the simple guide at http://www.atinfinity.info/wiki/index.php?OpenCV/Using%20OpenCV%202.2%20on%20iOS%20SDK%204.2 (which uses the older guide I\'ve also

Answer 1

The gcc flag for building a specific architecture is -march as in

gcc -march=i386 ...