anchor.diff:  
     meta = with lib; {
       description = "A packet traffic generator and analyzer";
  -    homepage    = "https://ostinato.org";
  -    license     = licenses.gpl3;
  +    homepage    = "https://ostinato.org/";
  +    license     = licenses.gpl3Plus;
       maintainers = with maintainers; [ rick68 ];
       platforms   = with platforms; linux ++ darwin ++ cygwin;
     };
  
positive.code: { lib, mkDerivation, fetchFromGitHub, fetchurl, qmake, makeDesktopItem
  , qtbase, qtscript, protobuf, libpcap, wireshark, gzip, diffutils, gawk
  , libnl
  }:
  
  mkDerivation rec {
  
negative.code: 
    buildInputs = [ qtbase protobuf libpcap qtscript libnl ];
  
    nativeBuildInputs = [
      copyDesktopItems
      qmake
    ];
  
    patches = [ ./drone_ini.patch ];
    prePatch = ''
      sed -i 's|/usr/include/libnl3|${libnl.dev}/include/libnl3|' server/drone.pro
    '';
  
    desktopItems = lib.singleton (makeDesktopItem {
      name          = "ostinato";
      desktopName   = "Ostinato";
      genericName   = "Packet/Traffic Generator and Analyzer";
      comment       = "Network packet and traffic generator and analyzer with a friendly GUI";
      categories    = [ "Network" ];
      startupNotify = true;
      exec          = "@out@/bin/ostinato";
      icon          =  ostinatoIcon;
      extraConfig   = {
        "GenericName[it]" = "Generatore ed Analizzatore di pacchetti di rete";
        "Comment[it]"     = "Generatore ed Analizzatore di pacchetti di rete con interfaccia amichevole";
      };
    });
  
    preFixup = ''
      substituteInPlace $out/share/applications/ostinato.desktop \
        --subst-var out
  
      cat > $out/bin/ostinato.ini <<EOF
      WiresharkPath=${wireshark}/bin/wireshark
  