Freebsd: Fatal error - Support not compiled in for passdb driver 'sql'

Hello,

I have the following fatal error when I uncomment #!include auth-sql.conf.ext in .../conf.d/10-auth.conf

dovecot: auth: Fatal: Support not compiled in for passdb driver 'sql'

I have installed via 'pkg'. Do I have to install the ports tree to get sql support ?

Thanks, -Graham-