Trying to compile OpenLDAP with supportedSASLMechanisms:EXTERNAL

[Sam Ricchio <sam_ricchio@fsd.k12.ca.us>]

Hi Everyone.
I am running FreeBSD 5.3, OpenLDAP 2.2.19, Berkley DB 4.2.
I have just upgraded from 2.1.21
My configure statement looked like
./configure --prefix=/usr/local --disable-ipv6 --with-cyrus-sasl 
--with-kerberos --with-tls --enable-monitor --enable-dynamic 
--enable-phonetic --enable-local --enable-slapd --enable-spasswd 
--enable-rlookups --enable-wrappers --enable-hdb --with-dyngroup=yes 
--with-proxycache=yes
I know from the FAQ and the mailing list when correctly compiled I need 
to see:
supportedSASLMechanisms:EXTERNAL
somewhere in the list of mechanisms.

When I search for supportedSASLMechanisms currently I  have:
supportedSASLMechanisms: NTLM
supportedSASLMechanisms: LOGIN
supportedSASLMechanisms: PLAIN
supportedSASLMechanisms: GSSAPI
supportedSASLMechanisms: OTP
supportedSASLMechanisms: DIGEST-MD5
supportedSASLMechanisms: CRAM-MD5

Can someone tell me what piece I'm missing.
Thanks
Sam