Unnecessary dependencies

There are two particular dependencies that the build system relies in that I (and probably others) don't use.

• OpenCV. I think this is only used by the face tracker, which I don't use.
• 32 bit. I didn't do a big investigation, but I suspect it has something to do with Wine support.

I generally delete all references to both 32 bit and the face tracker from the build system and then it builds just fine. Could this be made a configure option?

Hello, big overhaul of the configuration/build system is one of my todo list items... I'll take a look at it and will try to make it more "separable". Kind regards, Michal