The dot is obviously wrong.
I had a look at it, looks like their config script is borked. You need gtk-doc to build those docs for a start, but the --disable-gtk-doc switch doesn't work if you explicitly declare it when you do have gtk-doc installed. And there's ofcourse this small path problem, need to fix the makefile i think.
Ok, fixed the doc path, bumped revision. Added doc use flag, not sure what it does exactly in this case :)