glib2 deprecation vs gtk2

[Greg Troxel <gdt%lexort.com@localhost>]

In glib2, GTypeDebugFlags is deprecated as of 2.36.

But, our gtk2+ has:

/usr/pkg/include/gtk-2.0/gtk/gtktypeutils.h:void            gtk_type_init   (GTypeDebugFlags    debug_flags);

and this is leading to a warning in pkgsrc/ham/xlog, and failure with
-Werror.  (I have turned off deprecation warnings for xlog.)

So it looks like our gtk2 uses things deprecated in glib2.

Does anyone have any wisdom or advice.