extern BOOL transport_set_up_command(const uschar ***, uschar *,
BOOL, int, address_item *, uschar *, uschar **);
extern void transport_update_waiting(host_item *, uschar *);
extern BOOL transport_set_up_command(const uschar ***, uschar *,
BOOL, int, address_item *, uschar *, uschar **);
extern void transport_update_waiting(host_item *, uschar *);