anchor.diff:     [ glib json_glib libsoup geoip
        dbus dbus_glib avahi
      ] ++ optionals (!stdenv.isDarwin) [ modemmanager ];
  +
  +  propagatedBuildInputs = [ dbus dbus_glib glib glib_networking ];
   
     preConfigure = ''
        substituteInPlace configure --replace "-Werror" ""
  
positive.code: 
    NIX_CFLAGS_COMPILE = optionalString stdenv.isDarwin " -lintl";
  
    propagatedBuildInputs = [ dbus dbus_glib glib glib_networking ];
  
    meta = with stdenv.lib; {
      description = "Geolocation framework and some data providers";
  
negative.code:     sha256 = "19hfmr8fa1js8ynazdyjxlyrqpjn6m1719ay70ilga4rayxrcyyi";
    };
  
    outputs = [ "out" "dev" ];
  
    nativeBuildInputs = [
      pkgconfig intltool wrapGAppsHook
    ];
  