anchor.diff:      libjack2 ladspaH lame libass libbluray libbs2b libcaca libdc1394 libmodplug
       libogg libopus libssh libtheora libvdpau libvorbis libvpx libwebp libX11
       libxcb libXext libXfixes libXv lzma openal openjpeg_1 libpulseaudio rtmpdump
  -    samba SDL soxr speex vid-stab wavpack x264 x265 xavs xvidcore zeromq4 zlib
  +    samba SDL2 soxr speex vid-stab wavpack x264 x265 xavs xvidcore zeromq4 zlib
     ] ++ optional openglExtlib mesa
       ++ optionals x11grabExtlib [ libXext libXfixes ]
       ++ optionals nonfreeLicensing [ fdk_aac openssl ]
  
positive.code:     #(enableFeature (schroedinger != null) "libschroedinger")
      #(enableFeature (shine != null) "libshine")
      (enableFeature (samba != null && gplLicensing && version3Licensing) "libsmbclient")
      (enableFeature (SDL != null) "sdl") # Only configurable since 2.5, auto detected before then
      (enableFeature (soxr != null) "libsoxr")
      (enableFeature (speex != null) "libspeex")
      #(enableFeature (twolame != null) "libtwolame")
  
negative.code: #, libquvi ? null # Quvi input support
  , samba ? null # Samba protocol
  #, schroedinger ? null # Dirac de/encoder
  , SDL2 ? null
  #, shine ? null # Fixed-point MP3 encoder
  , soxr ? null # Resampling via soxr
  , speex ? null # Speex de/encoder
  