anchor.diff:  
   let
     pname = "liquidsoap";
  -  version = "2.0.6";
  +  version = "2.1.2";
   in
   stdenv.mkDerivation {
     inherit pname version;
   
     src = fetchurl {
       url = "https://github.com/savonet/${pname}/releases/download/v${version}/${pname}-${version}.tar.bz2";
  -    sha256 = "sha256-1wD9BApbDA/ovzZoniay+jciP/V2C8EoGQehd5N8PPQ=";
  +    sha256 = "sha256-e7iCBY9xKQZrkQ+IlahE1KEbDW89tTIlpGvHZubh3bM=";
     };
   
     postFixup = ''
  
positive.code:       ocamlPackages.portaudio
        ocamlPackages.pulseaudio
        ocamlPackages.shine
        ocamlPackages.soundtouch
        ocamlPackages.speex
        ocamlPackages.srt
  
negative.code:       ocamlPackages.tsdl-ttf
  
        # Undocumented dependencies
        ocamlPackages.graphics
        ocamlPackages.cohttp-lwt-unix
      ];
  
  