Log Message:
gtk3+: update to 3.24.34.

Turn off default-on wayland option since this needs
a newer wayland version than is currently in pkgsrc.

Overview of Changes in GTK+ 3.24.34, 05-18-2022
===============================================

* Include legacy hicolor icons

* Fix the build with gcc 12

* MacOS:
 - Restore QUARTZ_RELOCATION support

* X11:
 - Trap errors when getting output properties

* Wayland:
 - Ignore empty preedit updates This fixes a problem with
   textview scrolling