2013-01-28-16.42.41: src/glu/opengl/sh/make-opengl-glue:  build_callback_fun_for_xxx_client_g_pkg:  Tweak to produce   fun set_window_size_event_callback s c   instead of      fun set_window_size_event_callback s w c   (no widgets in OpenGL, unlike Gtk).  Output of make-opengl-glu now actually compiles. :-)