rm -f $(DESTDIR)$(datadir)/icons/hicolor/64x64/apps/claws-mail.png
rm -f $(DESTDIR)$(datadir)/icons/hicolor/128x128/apps/claws-mail.png
-if CLAWS_GNOME2
+if UPDATE_GTK_ICON_CACHE
gtk_update_icon_cache = gtk-update-icon-cache -f -t $(datadir)/icons/hicolor
install-data-hook: rename-icons update-icon-cache