anchor.diff:  , libupnp
   , libvorbis
   , mpg123
  +, musepack
   , openal
   , opus
   , pulseaudio_lib
  +, samba_client
  +#, shine
   , soxr
   , sqlite
   , systemd_lib
  
positive.code:     optional
      optionals;
  
    versionMajor = "0.19";
    versionMinor = "21";
  in
  stdenv.mkDerivation rec {
    name = "mpd-${versionMajor}.${versionMinor}";
  
negative.code:     libupnp
      libvorbis
      mpg123
      musepack
      openal
      opus
      pulseaudio_lib
      samba_client
      #shine
      soxr
      sqlite
      systemd_lib
  