Cross-compile clang on 64-bit OS X for iOS

Hi,

I am seeking to write Objective-C 2.1 on iOS, and prefers to add clang to check the code —preferably against frameworks already installed with iOS so reduce memory footprint. I do not need to build executables.

I'm new to clang and I've read clang.llvm.org but I'm unsure if what I seek is doable. Any pointer in the right direction is greatly appreciated.

Thank you in advance,
Chris