Fixing Win32 build with SCons

[thelusiv]

I read through the GLEW code a while back and the biggest thing I think we could draw from it if we used it more heavily, is that it has a good bit of code for lots of different platforms defining what is available or not (Darwin, Solaris, BSD, Linux, various different sections for NVIDIA and ATI). I think the big issue is that we assume that Linux and other OS users are using the latest headers. I don't think that's always necessarily true. Again, I'm not an OpenGL expert of any kind but Joe I think you should read the code for GLEW and see if you could put it to work in the CARDINFO class. I guess my statements before about replacing/changing CARDINFO to use GLEW were a bit poorly worded, I guess what I was trying to say was, could it be used to make the CARDINFO class more robust...?