Yes, I see that libircclient is causing the trouble and, as I said above, I did try installing the latest version but the usual `make install` fails and apparently has failed since 2009 (!) when it was reported. I fiddled around with it and it doesn't compile either.
I'd love to chat with whoever builds the Mac distribution...remember, you gave me the commands to exclude large chunks of the build just to get this far.
I have a pretty straight-forward, standard Mac development system (one of my day jobs is Mac programming) so it should 'just work' in this environment.
I'm delighted to help figure this out further but if it builds for someone else, finding out what's different between our environments will be way more productive long-term for the project than having me just slog this out...
Thanks,
S