extern void gift(natid, natid, void *, char *);
extern int display_mark(i_type, int);
extern int nav_map(int, int, int);
-extern int do_unit_move(struct emp_qelem *, int *, double *, double *);
+extern int do_unit_move(struct emp_qelem *, double *, double *);
extern int count_pop(int);
extern int line_of_sight(char **rad, int ax, int ay, int bx, int by);
extern void plane_sona(struct emp_qelem *, int, int, struct shiplist **);