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 uschar *host_ntoa(int, const void *, uschar *, int *);
extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
-extern uschar *imap_utf7_encode(uschar *, const uschar *,
+extern uschar *imap_utf7_encode(uschar *, const uschar *,
uschar, uschar *, uschar **);
extern void invert_address(uschar *, uschar *);