anchor.diff:    libExecPath = "$out/libexec/${packageName}";
     sandboxPath = "${sandbox}/bin/${packageName}_sandbox";
   
  +  desktopItem = makeDesktopItem {
  +    name = "Chromium";
  +    exec = "chromium";
  +    icon = "chromium";
  +    comment = "An open source web browser from Google";
  +    desktopName = "Chromium";
  +    genericName = "Web browser";
  +    mimeType = "text/html;text/xml;application/xhtml+xml;x-scheme-handler/http;x-scheme-handler/https;x-scheme-handler/ftp;x-scheme-handler/mailto;x-scheme-handler/webcal";
  +    categories = "Network;WebBrowser";
  +  };
  +
   in stdenv.mkDerivation rec {
     name = "${packageName}-${src.version}";
     inherit packageName src;
  
positive.code:       mkdir -vp "$logo_output_path"
        cp -v "$icon_file" "$logo_output_path/${packageName}.png"
      done
    '';
  
    passthru = {
  
negative.code: { stdenv, fetchurl, makeWrapper, ninja, which, makeDesktopItem
  
  # default dependencies
  , bzip2, flac, speex
  