Mac OS X Port of GL-117

Being an SDL/OpenGL program, there were three basic ways to port
this to OS X:

The best would be to make the configuration and build process
Framework-aware.  This would make a whole bunch of stuff work better,
and is the right thing to do, but it's more work than I want to do
right now. :-)

The worst thing to do would be to compile everything plain-UNIX
style as libraries and such.  This would be bad because we'd either
have to compile it static, so the libraries would get out of date,
or make the user install a bunch of dynamic libraries.

The way I did it was to take the path of least resistance.  I
bypassed the configure script to make my own config.h, loaded the
code into Xcode, and built it against the frameworks in the Apple
style.  Not a lot of work, and only a couple of tweaks to the
original source later, we're in business.  Hooray!


Prerequisites

Whether you want to compile it for yourself or just run it, you
need the SDL Framework.  You can get it from:

	http://www.libsdl.org/release/SDL-1.2.8.pkg.tar.gz

Once you've installed that, you should be in business.  Open
GL-117.xcode and put the hammer down.  It should build and run.
Drag the resulting application wherever you like and enjoy!


Notes and Future Improvements

I put the support files in the App wrapper, as you should, but I
didn't use the methods to get them from there.  That's sort of a
hack, but it should work.  It did require one change to the original
code.  The old code was hardwired to look in "DATADIR/gl-117", but
that was inconvenient here, so I made DATADIR be the Resource folder
and took "/gl-117" out of the path.  They get copied in during the
build process.

The config.h thing is a bit of a hack, but its heart is in the right
place.  As I mentioned earlier, if configure and friends were
Framework aware, we wouldn't need to do that and could then either
build it from Xcode or with make if we generated the necessary
files.

The SDLMain files are from the SDL distribution.  I modified them
only enough to make them compile cleanly.

Could use a simple NIB.  You won't even see it if you run the program
fullscreen.  I just think people should be able to find the website
if they didn't know where it is.  And I could stick my name in there
too. :-)

There are a lot of code generation options in Xcode that you can
play with if you want to make it G5-specific or something.  I tried
to keep it relatively conservative.  Fact is, you need a studly
graphics card and the CPU matters a lot less.  On a G4 with a GeForce
2, it's pretty slow.  On a G4 with a GeForce 4, it's OK.  Still
runs better on the GeForce 5 in my PC, though.