Only one installed library file, libgtkmm-4.0?
Gtk4 installs only one library file and one .pc file. Bug https://bugzilla.gnome.org/show_bug.cgi?id=773100 discusses the change from three installed libraries (gdk, gsk and gtk) to one (gtk) with all code from the three directories gdk, gsk, gtk.
Should we do the same in gtkmm? Skipping (at least not installing) libgdkmm instead of adding libgskmm, when we start wrapping classes in the gtk+/gsk directory?
I think it's a good idea. Comments?