+/* UI */
+typedef gboolean (*Predicate)( gpointer data, gpointer user_data );
+GtkWidget *vik_routing_ui_selector_new ( Predicate func, gpointer user_data );
+VikRoutingEngine *vik_routing_ui_selector_get_nth ( GtkWidget *combo, int pos );
+
+/* Needs to be visible to display info about which routing engine is getting the route in viktrwlayer.c */
+VikRoutingEngine * vik_routing_default_engine ( void );
+
+