I'm struggling to get this to work on OSX Lion. There are a few things I've come across in the instructions that seem wrong:
>> 4.1 Download gtk2hs from Gtk2Hs website and untar it.
there is no gtk2hs download available, just gtk2hs-buildtools. Instead it says to use macports, so there is no tarball to find the configure script, as described in the next section.
>> sudo port install gtk +universal
Macports reports that gtk is not a package. Perhaps this should be gtk2.
I didn't make any wiki changes since I can't get it to work anyway, so I am probably not doing it right myself.