Attached patch seems to fix build problem with recent kernel headers, where v4l1 was removed. I'm sending it here first (instead straight to wine-patches), as I have no real way of testing it - I only know it builds.
As such, I haven't bothered yet with keeping consistant folding style.
In case of any questions, CC me.
PS.: qcap *might* need a similar, though far more complex fix.