anchor.diff:  stdenv.mkDerivation rec {
     name = "clutter-gst-${version}";
     versionMajor = "3.0";
  -  versionMinor = "16";
  +  versionMinor = "18";
     version = "${versionMajor}.${versionMinor}";
   
     src = fetchurl {
       url = "mirror://gnome/sources/clutter-gst/${versionMajor}/${name}.tar.xz";
  -    sha256 = "1w7rm8n4b6vskrg537rfa58ykpwj8w3cdl0zwa0hagp6cmr8ngl0";
  +    sha256 = "0aec0d0c6020cd19a5bb0dab1165a92748f81a9a3acdfabb0f966d5f53bc8093";
     };
   
     buildInputs = [
  
positive.code:     gstreamer
      gtk3
      json-glib
      pango
    ];
  
    configureFlags = [
      "--enable-gl-texture-upload"
      "--disable-maintainer-flags"
      "--disable-debug"
  
negative.code: , gstreamer
  , gtk3
  , json-glib
  , libgudev
  , pango
  }:
  
  