* Zapping/VLC/MPlayer: use libXv.
* MPlayer: upgrade to 1.0pre4.
* Zapping: add libXext to the rpath. I don't understand why this is
necessary. Zapping doesn't itself link against libXext, though some
of its dependencies do. (Maybe this is due to `--export-dynamic'?)
svn path=/nixpkgs/trunk/; revision=990