Backporting Wine with Xinput2

I had problems backporting wine (still 1.3.33) with xinput 2. It seems to be what is called the Xmd.h inclusion bug (conflicting datatype declarations) and after a bit of reading, I couldn't make sense why this wouldn't work now. After digging up and trying to run the make on winex11drv to see what was happening, it turns out it's missing the libXext package. I slipped that in and everything built just fine. Now to see how mouse support is going.