GTK 3 icontheme test fails with GLib 2.73.x
The GTK 3 test suite has a couple of uses of g_log_set_writer_func(), which is documented to be invalid to call more than once. Since GLib 2.73.0, this restriction is enforced by an assertion, causing GTK 3 tests to fail (icontheme.c
confirmed, treestore.c
not confirmed).