Creates a new Resource Manager instance (RMI) in the calling
    process.

    Format

      SYS$DECLARE_RM  [efn] ,[flags] ,iosb ,[astadr] ,[astprm] ,rm_id

                      ,event_handler ,[part_name] [,[rm_context]

                      ,[acmode] ,[tm_log_id] ,[event_mask]]

    C Prototype

      int sys$declare_rm  unsigned int efn, unsigned int

                          flags, struct _iosb *iosb, void

                          (*astadr)(__unknown_params), int

                          astprm, unsigned int *rm_id, void

                          (*event_handler)(__unknown_params),... ;