anchor.diff:      preConfigure = ''
         cp ${kodi_src}/tools/depends/target/ffmpeg/{CMakeLists.txt,*.cmake} .
       '';
  -    buildInputs = [ gnutls libidn libtasn1 p11_kit zlib ];
  +    buildInputs = [ gnutls libidn libtasn1 p11_kit zlib libva ]
  +      ++ lib.optional  vdpauSupport    libvdpau;
       nativeBuildInputs = [ cmake nasm pkgconfig ];
     };
   
  
positive.code:       # libdvdcss libdvdnav libdvdread
      ]
      ++ lib.optional  dbusSupport     dbus_libs
      ++ lib.optionals joystickSupport [ cwiid SDL2 ]
      ++ lib.optional  nfsSupport      libnfs
      ++ lib.optional  pulseSupport    libpulseaudio
      ++ lib.optional  rtmpSupport     rtmpdump
  
negative.code: , libXt, libXmu, libXext, xextproto
  , libXinerama, libXrandr, randrproto
  , libXtst, libXfixes, fixesproto, systemd
  , alsaLib, mesa, glew, fontconfig, freetype, ftgl
  , libjpeg, jasper, libpng, libtiff
  , libmpeg2, libsamplerate, libmad
  , libogg, libvorbis, flac, libxslt
  