unable to dlopen /usr/local/lib/sasl2/libsasldb.so.2:

Running Postfix 2.2.3 on FreeBSD 5.4/R on Sparc64.

I get the following error in my (system) log from an SMTP transaction:

May 24 14:23:25 pepperoni postfix/smtpd[30288]: unable to dlopen
/usr/local/lib/sasl2/libsasldb.so.2: /usr/local/lib/sasl2/libsasldb.so.2:
Undefined symbol "db_create"

Any ideas? The error occurs whether or not authentication is
requested/used.

I hand-tested authentication, and it works fine. I am authenticating with
saslauthd using kerberos5 for username/password combinations.

pepperoni# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 pepperoni.downtownhelpdesk.com ESMTP - AUTHORIZED CLIENTS ONLY
EHLO localhost
250-pepperoni.downtownhelpdesk.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH LOGIN PLAIN GSSAPI
250-AUTH=LOGIN PLAIN GSSAPI
250 8BITMIME
AUTH PLAIN <my base 64-encoded username/password>
235 Authentication successful
^]
telnet> quit
Connection closed.

--
Mark J. Nernberg
Director of Technology
CompIT Solutions
http://www.compitsolutions.com
(412)355-0501 [office]
(412)478-6262 [cell]