[Dovecot] Dovecot and multiple instances in Geentoo

[Wojciech Matys]

Is there any possiblity to run more than one instance of dovecot in gentoo
(I was trying to run second instance but I don't know how to force it to
use other pid file than /var/run/dovecot/master.pid)
I'm using dovecot from portage dovecot-1.0.13-r1.