View source for Make Wacko use the user database from another system

Hello again!

I'm not entirely sure where I should post this question.  Since it is a question about integrating WackoWiki with something else I figured this was a good place.

I was curious if there is a way I can make WackoWiki authentication use the credentials from a system like IPS/IPB.
If this is possible my users would not have to worry about making a separate account for the wiki, since they already created one for the forum would be enough.

Basically using the same login table for two or more services (in this case Wackowiki and an IPS forum) both on the same host.
I imagine it could be as simple as changing the target database tables in the php code, but like I mentioned before my php is quite rusty

IPB uses OAuth and REST