[Dovecot] How can i complie and install the dict modules

[Oliver Eales]

Hello,

I want to migrate from courier-imap to dovecot and now i am trying out
dovecot1.1.alpha3
But i have problems getting the expire plugin to work.
At startup i get the message:
Unknown dict module: db
As far as i understood i have to compile the backend manually an copy it
into tho appropirate place.
But how can i do this ?

Thanks in advance,

Oliver Eales