minor changes. I think scons might cooperate better with cpppath than cxxflag -I. also, SDLmain is not available as a static library with the official mac distribution of 'frameworks'. I don't know how to get around this yet, but I think trying to subvert it was leading to runtime issues earlier. It's probably better to fail for a good reason like this
stupid mac renaming stuff
now this fails in the same way as bmpout, which is probably good. we need to link in sdl_main, somehow, now.