Make it compile, Part I.
Fix build, Part II
It fails on the linking stage now.
Conform to master's const typing.
Fix build, Part IV
Add XInput libs. Now fails on GLX stuffs.
Update to how master does things.
This will cause nastiness during merging, but I'll take care of that later.
Fix to make SDL2 work.
IT. ACTUALLY. COMPILES.
IT ACTUALLY RUNS!
Fix banners (hopefully).
WBFS support.
Another fix to banners.
Basic OS X support for Qt (needs work)