anchor.diff:  
     src = fetchurl {
       url = "mirror://gnome/sources/meld/${minor}/meld-${version}.tar.xz";
  -    sha256 = "1bec697aa1ababa315ca8241ade65dc68ea87f0d316632f590975afcf967cfab";
  +    sha256 = "2dd3f58b95444bf721e0c912668c29cf8f47a402440b772ea12c4b9a0c94966f";
     };
   
     buildInputs = [
  -    python27 intltool makeWrapper itstool libxml2
  +    python27 intltool wrapGAppsHook itstool libxml2
       gnome3.gtksourceview gnome3.gsettings_desktop_schemas pycairo cairo
  -    gnome3.defaultIconTheme
  +    gnome3.defaultIconTheme gnome3.dconf file
     ];
     propagatedBuildInputs = [ gobjectIntrospection pygobject3 gtk3 ];
   
  
positive.code: { stdenv, fetchurl, itstool, buildPythonApplication, python27, intltool, makeWrapper
  , libxml2, pygobject3, gobjectIntrospection, gtk3, gnome3, pycairo, cairo
  }:
  
  
  let
    minor = "3.16";
    version = "${minor}.1";
  in
  
  buildPythonApplication rec {
  
negative.code:     mv $out/share/glib-2.0 $out/share/gsettings-schemas/$name/
    '';
  
    patchPhase = ''
      patchShebangs bin/meld
    '';
  