Hi Everyone working on Mac OS X.
It looks like you are missing SDLMain.o? Do you have that?
If not you will need it to be able to build run correctly under Mac OS X.
I couldn't work out a way to get it working without it.

If you plan to release a univeral binary for both PPC and i386 systems, then you'll need an SDLMain.o that is PPC as well.

I have both SDLMain.i386 and SDLMain.ppc, which are being used in Game Maker 7.5 on Mac OS X, so can forward that on if necessary. I should probably check that into Sourceforge at some point.

I hope that helps.