Database support

Hi! On my system XEmacs 21.2 (beta35) "Nike" [Lucid] (i386-unknown-freebsd3.3) of Tue Aug 22 2000 on lamia.LF.net (describe-installation) shows me Databases: Compiling in support for Berkeley database. Compiling in support for GNU DBM. but I see (setq db (open-database "/var/db/locate.database" 'berkeley_db 'hash "r")) => Unsupported database type: berkeley_db So, what das 'Compiling in support for Berkeley database.' really mean. Am I missing something? Thanks, norbert.