You can't drop GTK1 unless you want to break every single Loki
Setup out there.
Unless you consider that users should be able to associate a message like:
setup: error while loading shared libraries: libgtk-1.2.so.0 not found
(which is only shown on the console) with the magic command to fix it.
I don't think that's the usability aesthetic we want on Linux ...
By that argument we can never drop any library, ever b/c SOMETHING might
depend on it.
-sv