Created attachment 3899 0001-Fix-compilation-against-GTK-2.20.patch Attached is a patch that fixes compilation against GTK+ 2.20. Currently the code uses GDK_KEY_Up/Down while this was introduced in GTK+ 2.22.
4.8 does not use GDK_KEY_*, neither does master.
The appfinder currently has two lines of code that uses GDK_KEY_*: $ grep GDK_KEY * appfinder-window.c:591: if (event->keyval == GDK_KEY_Up || event->keyval == GDK_KEY_Down) appfinder-window.c:593: expand = (event->keyval == GDK_KEY_Down);
My bad, sorry. Search in 4.8 and assumed in master.