anchor.diff:  
     NIX_CFLAGS_COMPILE = optionalString stdenv.isDarwin " -lintl";
   
  -  propagatedBuildInputs = [ dbus dbus_glib glib ];
  +  propagatedBuildInputs = [ dbus dbus_glib glib glib_networking ];
   
     meta = with stdenv.lib; {
       description = "Geolocation framework and some data providers";
  
positive.code: { fetchurl, stdenv, intltool, libintlOrEmpty, pkgconfig, glib, json_glib, libsoup, geoip
  , dbus, dbus_glib, modemmanager, avahi
  }:
  
  with stdenv.lib;
  
negative.code:   };
  
    nativeBuildInputs = [
      pkgconfig intltool wrapGAppsHook
    ];
  
    buildInputs = libintlOrEmpty ++
     [ glib json_glib libsoup geoip
       dbus dbus_glib avahi
     ] ++ optionals (!stdenv.isDarwin) [ modemmanager ];
  
  