Well, I'm getting old I guess, tde-libksquirrel has xmedcon as an optional dependency that provides medical image handling and conversion. (CT, MRI, PET, etc..) I always build it because I use the functionality. My question was for these type of applications is whether there is any preference whether they are built against GTK2 or GTK3 if we have a choice. The reason it matters to me is that if some apps are built with a gtk2 dependency, you pull in gtk2 as a build dependency, if against gtk3, then you pull in gtk3. (that looks like it will happen for the foreseeable future anyway). I didn't know if there had been any discussion about trying to minimize build dependencies such that if an option existed to use either gtk2 or 3, if there was a preference for one or the other. Smacks self -- there I go thinking someone else will actually be building tde on arch except me -- never mind...