anchor.diff:  { fetchurl, stdenv, m4, glibc, gtk3, libexif, libgphoto2, libsoup, libxml2, vala, sqlite
   , webkitgtk, pkgconfig, gnome3, gst_all_1, which, udev, libgudev, libraw, glib, json_glib
   , gettext, desktop_file_utils, lcms2, gdk_pixbuf, librsvg, makeWrapper
  -, gnome_doc_utils, hicolor_icon_theme }:
  +, gnome_doc_utils, hicolor_icon_theme, itstool }:
   
   # for dependencies see http://www.yorba.org/projects/shotwell/install/
   
   stdenv.mkDerivation rec {
     version = "${major}.${minor}";
     major = "0.23";
  -  minor = "2";
  +  minor = "4";
     name = "shotwell-${version}";
   
     src = fetchurl {
       url = "mirror://gnome/sources/shotwell/${major}/${name}.tar.xz";
  -    sha256 = "d52caae4e3204f2f78e2eb828d955848ea6fef5c91d3ac6e9eb0b185c0490b39";
  +    sha256 = "1hnl0lxibklmr1cy95ij1b3jgvdsw4zlcja53ngfxvlsi2r2bbxi";
     };
   
     NIX_CFLAGS_COMPILE = "-I${glib.dev}/include/glib-2.0 -I${glib.out}/lib/glib-2.0/include";
  
positive.code: 
    preConfigure = ''
      patchShebangs .
    '';
  
    postInstall = ''
      mkdir -p $out/share/gsettings-schemas/$name
      mv $out/share/glib-2.0 $out/share/gsettings-schemas/$name/
    '';
  
    preFixup = ''
  
negative.code:                   which udev libgudev gnome3.gexiv2 hicolor_icon_theme
                    libraw json_glib gettext desktop_file_utils glib lcms2 gdk_pixbuf librsvg
                    makeWrapper gnome_doc_utils gnome3.rest
                    gnome3.defaultIconTheme itstool ];
  
    meta = with stdenv.lib; {
      description = "Popular photo organizer for the GNOME desktop";
  