+/* src/lib/common/findpath.c */
+extern void path_find_from(coord, coord, natid, int);
+extern double path_find_to(coord, coord);
+extern double path_find(coord, coord, coord, coord, natid, int);
+extern size_t path_find_route(char *, size_t, coord, coord, coord, coord);
+#ifdef PATH_FIND_DEBUG
+extern void path_find_visualize(coord, coord, coord, coord);
+#endif
+#ifdef PATH_FIND_STATS
+extern void path_find_print_stats(void);
+#else
+#define path_find_print_stats() ((void)0)
+#endif
+