Hi folks.
Sorry for the Slashdot duplicate, but I thought this technical note was a nice summation of major compiler and build-system issues on Mac OS X, and would be of some interest to those porting externals to the Mac. No real new information, but it's a lot more pithy than Apple's different man pages and html manuals: http://developer.apple.com/technotes/tn2002/tn2071.html