anchor.diff:  { stdenv, intltool, fetchurl, libxml2, webkitgtk, highlight
   , pkgconfig, gtk3, glib, libnotify, gtkspell3
  -, makeWrapper, itstool, shared_mime_info, libical, db, gcr, sqlite
  +, wrapGAppsHook, itstool, shared_mime_info, libical, db, gcr, sqlite
   , gnome3, librsvg, gdk_pixbuf, libsecret, nss, nspr, icu, libtool
  -, libcanberra_gtk3, bogofilter, gst_all_1, procps, p11_kit }:
  +, libcanberra_gtk3, bogofilter, gst_all_1, procps, p11_kit, dconf }:
   
   let
     majVer = gnome3.version;
  
positive.code: 
    doCheck = true;
  
    propagatedUserEnvPkgs = [ gnome3.gnome_themes_standard ];
  
    propagatedBuildInputs = [ gnome3.gtkhtml ];
  
    buildInputs = [ pkgconfig gtk3 glib intltool itstool libxml2 libtool
                    gdk_pixbuf gnome3.defaultIconTheme librsvg db icu
                    gnome3.evolution_data_server libsecret libical gcr
                    webkitgtk shared_mime_info gnome3.gnome_desktop gtkspell3
                    libcanberra_gtk3 bogofilter gnome3.libgdata sqlite
                    gst_all_1.gstreamer gst_all_1.gst-plugins-base p11_kit
                    nss nspr libnotify procps highlight gnome3.libgweather
                    gnome3.gsettings_desktop_schemas makeWrapper ];
  
    configureFlags = [ "--disable-spamassassin" "--disable-pst-import" "--disable-autoar"
                       "--disable-libcryptui" ];
  
negative.code:   NIX_CFLAGS_COMPILE = "-I${nspr.dev}/include/nspr -I${nss.dev}/include/nss -I${glib.dev}/include/gio-unix-2.0";
  
    enableParallelBuilding = true;
  
    meta = with stdenv.lib; {
      homepage = https://wiki.gnome.org/Apps/Evolution;
  