Compiling Your Code in Mac OS X

http://developer.apple.com/library/mac/#documentation/Porting/Conceptual/PortingUnix/unix_environments/unix_environments.html

http://developer.apple.com/library/mac/#documentation/Porting/Conceptual/PortingUnix/compiling/compiling.html%23//apple_ref/doc/uid/TP40002850-TPXREF101