+static guint8 osm_zoom ( gdouble mpp );
+
+static gboolean osm_coord_to_mapcoord ( const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );
+static void osm_mapcoord_to_center_coord ( MapCoord *src, VikCoord *dest );
+static int osm_maplint_download ( MapCoord *src, const gchar *dest_fn );
+static int osm_mapnik_download ( MapCoord *src, const gchar *dest_fn );
+static int osm_osmarender_download ( MapCoord *src, const gchar *dest_fn );
+
+