Fixed a few issues compiling with Mac OS X 10.6 Unfortunately the audio and cdrom systems do not build at all, and if you disable those, SDL still fails to link with these errors: Undefined symbols: "_OBJC_IVAR_$_NSScreen._frame", referenced from: -[NSScreen(NSScreenAccess) setFrame:] in SDL_cocoamodes.o "_KLGetKeyboardLayoutProperty", referenced from: _UpdateKeymap in SDL_cocoakeyboard.o _UpdateKeymap in SDL_cocoakeyboard.o "_KLGetCurrentKeyboardLayout", referenced from: _UpdateKeymap in SDL_cocoakeyboard.o ld: symbol(s) not found

The reason these libraries are built outside of the standard XFree86
tree is so that they can be linked as shared object code directly into
SDL without causing any symbol collisions with code in the application.

You can't link static library code into shared libraries on non-x86
Linux platforms.  Since these libraries haven't become standard yet,
we'll just include them directly.

These sources are synchronized with XFree86 4.2.1