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Take a look at <a href=“http://bugs.quassel-irc.org/projects/1/wiki/Build_Core_On_Ubuntu”>http://bugs.quassel-irc.org/projects/1/wiki/Build_Core_On_Ubuntu</a>. I’ve followed it myself a while ago to set up a QuasselIRC Core and it worked just fine.
<br>Let me know how it goes! :)