[Dovecot] Lazy expunge

When I try to use it i get undefined symbol:

dlopen(/usr/lib/dovecot/pop3/lib02_lazy_expunge_plugin.so) failed: /usr/lib/dovecot/pop3/lib02_lazy_expunge_plugin.so: undefined symbol: namespace_find_prefix

Does anyone has this problem or I've compiled it with too agresive flags? Thanx!

PS. I've folowed http://wiki.dovecot.org/Plugins/Lazyexpunge word to word.

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