在solaris下装sendmail ， 出现了个关于btree的问题

x-cool

之后装了个drac，按drac的INSTALL，编译好新的sendmail.cf后，运行sendmail start ，出现如下问题，哪位大哥懂

在sendmail.cf 按要求，加了这个
9) Modify sendmail.cf:  For sendmail 8.9.0, add the following to
   your .mc file under LOCAL_CONFIG...

# dynamic relay authorization control map
Kdrac btree /etc/mail/dracd

# /etc/init.d/sendmail start
554 5.0.0 /etc/mail/sendmail.cf: line 124: readcf: map drac: class btree not available