extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
extern void enq_end(uschar *);
-extern BOOL enq_start(uschar *);
+extern BOOL enq_start(uschar *, unsigned);
#ifdef EXPERIMENTAL_EVENT
extern uschar *event_raise(uschar *, const uschar *, uschar *);
#endif
extern int smtp_feof(void);
extern int smtp_ferror(void);
extern uschar *smtp_get_connection_info(void);
-extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
+extern BOOL smtp_get_interface(uschar *, int, address_item *,
uschar **, uschar *);
extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
extern int smtp_getc(void);