anchor.diff:        glib gtk2 dbus_glib
         libXScrnSaver libXcursor libXtst mesa
         pciutils protobuf speechd libXdamage
  -      pythonPackages.ply pythonPackages.jinja2
  +      python2Packages.ply python2Packages.jinja2
       ] ++ optional gnomeKeyringSupport libgnome_keyring3
         ++ optionals gnomeSupport [ gnome.GConf libgcrypt ]
         ++ optional enableSELinux libselinux
  
positive.code: 
      src = upstream-info.main;
  
      nativeBuildInputs = [ gn which python perl pkgconfig ];
  
      buildInputs = defaultDependencies ++ [
        nspr nss systemd
  
negative.code: , xdg_utils, yasm, minizip, libwebp
  , libusb1, pciutils, nss, re2, zlib, libvpx
  
  , python2Packages, perl, pkgconfig
  , nspr, systemd, kerberos
  , utillinux, alsaLib
  , bison, gperf
  