anchor.diff:      for n in 16 22 24 32 48 256; do
         size=$n"x"$n
         mkdir -p $out/share/icons/hicolor/$size/apps
  -      cp $src/application/palemoon/branding/official/default$n.png \
  +      cp $src/palemoon/branding/official/default$n.png \
            $out/share/icons/hicolor/$size/apps/palemoon.png
       done
   
  
positive.code:     desktopName = "Pale Moon";
      genericName = "Web Browser";
      categories = "Application;Network;WebBrowser;";
      mimeType = stdenv.lib.concatStringsSep ";" [
        "text/html"
        "text/xml"
        "application/xhtml+xml"
  
negative.code:     ];
    };
  
    nativeBuildInputs = [
      file gnum4 makeWrapper perl pkgconfig python2 wget which
    ];
  
    buildInputs = [
      alsaLib bzip2 cairo dbus dbus-glib ffmpeg fontconfig freetype
      gnome2.GConf gtk2 hunspell libevent libjpeg libnotify
      libstartup_notification libGLU libGL
      libpulseaudio unzip yasm zip zlib
    ]
    ++ (with xorg; [
      libX11 libXext libXft libXi libXrender libXScrnSaver
      libXt pixman xorgproto
    ])
    ++ lib.optional withGTK3 gtk3;
  
    enableParallelBuilding = true;
  
    configurePhase = ''
      export MOZCONFIG=$(pwd)/mozconfig
      export MOZ_NOSPAM=1
  
      # Keep this similar to the official .mozconfig file,
      # only minor changes for portability are permitted with branding.
      # https://developer.palemoon.org/build/linux/
      echo > $MOZCONFIG '
      # Clear this if not a 64bit build
      _BUILD_64=${lib.optionalString stdenv.hostPlatform.is64bit "1"}
  
      # Set GTK Version to 2 or 3
      _GTK_VERSION=${gtkVersion}
  
      # Standard build options for Pale Moon
      ac_add_options --enable-application=palemoon
      ac_add_options --enable-optimize="-O2 -w"
      ac_add_options --enable-default-toolkit=cairo-gtk$_GTK_VERSION
      ac_add_options --enable-jemalloc
      ac_add_options --enable-strip
      ac_add_options --enable-devtools
  
      ac_add_options --disable-eme
      ac_add_options --disable-webrtc
      ac_add_options --disable-gamepad
      ac_add_options --disable-tests
      ac_add_options --disable-debug
      ac_add_options --disable-necko-wifi
      ac_add_options --disable-updater
      ac_add_options --with-pthreads
  
      # Please see https://www.palemoon.org/redist.shtml for restrictions when using the official branding.
      ac_add_options --enable-official-branding
      export MOZILLA_OFFICIAL=1
  
      ac_add_options --x-libraries=${lib.makeLibraryPath [ xorg.libX11 ]}
  
      export MOZ_PKG_SPECIAL=gtk$_GTK_VERSION
  
      #
      # NixOS-specific adjustments
      #
  
      ac_add_options --prefix=$out
  
      mk_add_options MOZ_MAKE_FLAGS="-j$NIX_BUILD_CORES"
      mk_add_options AUTOCONF=${autoconf213}/bin/autoconf
      '
    '';
  
    buildPhase = "$src/mach build";
  
    installPhase = ''
      $src/mach install
  