+/* src/lib/common/bestpath.c */
+extern char *bestownedpath(char *, char *, int, int, int, int, int);
+
+/* src/lib/common/path.c */
+extern void bp_enable_cachepath(void);
+extern void bp_disable_cachepath(void);
+extern void bp_clear_cachepath(void);
+extern char *BestDistPath(char *, struct sctstr *, struct sctstr *,
+ double *);
+extern char *BestLandPath(char *, struct sctstr *, struct sctstr *,
+ double *, int);
+extern char *BestShipPath(char *, int, int, int, int, int);
+extern char *BestAirPath(char *, int, int, int, int);
+extern double pathcost(struct sctstr *, char *, int);
+