I noticed I'd left out a bunch of code in the original source release. You might want to try re-downloading. I've never tried compiling it on BSD, though.
Also, I don't have my Windows machine handy to test that game, but you really ought to package the dependencies along with the game itself. Nobody wants to have to download multiple libraries to run a little game.
Well, as I said, mainly stuff you made or were involved with yourself. Or stuff that's just blantatly obviously homebrew hobbyist games.