There's been a Chikka plugin for Gaim for a while now. I got it to work some time ago, then reinstalled linux and never found the energy or need to get it to work again. It's pretty easy, but I got sidetracked by a desire to make it work with source built gaim rather than using the gaim that already came with my distribution.
I decided to look at it again from the standpoint of just getting it working instead of trying to make it smarter (so that it could detect where gaim was installed if it wasn't in the standard places, etc). When I last did that, I lost interest again since it didn't work.
Today I tried again and I realized that I probably needed to install gaim-devel to get chikka working. and after a:
and a simple ./configure;make;make_install in both the chix and chix_gaim directories, i've got chikka functionality in gaim. Now, I don't think it's working yet. I can go online in chikka and i see when other people are online (they just received or sent a chikka message), but messages i send don't seem to be working. I'll need to look at this again some more. I'll probably get it working tonight.
anyway, installing chikka does need gaim-devel. Without it, i couldn't even get gaim to notice that it was possible to connect to the chikka network, or that chikka even existed.