extern char *get_dirstack_from_string __P((char *));
extern char *get_dirstack_element __P((intmax_t, int));
extern void set_dirstack_element __P((intmax_t, int, char *));
-extern WORD_LIST *get_directory_stack __P((void));
+extern WORD_LIST *get_directory_stack __P((int));
/* Functions from evalstring.c */
extern int parse_and_execute __P((char *, const char *, int));