Created attachment 145757 [details] [review]
Adds empty functions to GdkWindowImplIface for quartz.

In
http://git.gnome.org/cgit/gtk+/commit/?id=7372379c24d183aa23e33cef031b774a5cb25ce4,
Alexander Larson added two new methods, input_window_crossing and
input_window_destroy to struct _GdkWindowImplIface and implemented them for
X11. Tor Lilqvist implemented then for Win32 in
http://git.gnome.org/cgit/gtk+/commit/?id=341b8a47529ad5f1bddee19cb6e32fac6c7b8856
2 months later.

They have not been implemented for quartz, causing a bus error (segfault) when
either event is received:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0x00000000
0x00000000 in ?? ()
(gdb) bt 8

+ Trace 218407

(gdb) p *impl_iface
$2 = {
  g_iface = {
    g_type = 21183920, 
    g_instance_type = 21180720
  }, 
  show = 0xe18425 <gdk_window_quartz_show>, 
  hide = 0xe1891f <gdk_window_quartz_hide>, 
  withdraw = 0xe18a52 <gdk_window_quartz_withdraw>, 
  raise = 0xe197d0 <gdk_window_quartz_raise>, 
  lower = 0xe1991e <gdk_window_quartz_lower>, 
  restack_under = 0, 
  restack_toplevel = 0xe19a6c <gdk_window_quartz_restack_toplevel>, 
  move_resize = 0xe19186 <gdk_window_quartz_move_resize>, 
  set_background = 0xe19a74 <gdk_window_quartz_set_background>, 
  set_back_pixmap = 0xe19a7c <gdk_window_quartz_set_back_pixmap>, 
  get_events = 0xe1a548 <gdk_window_quartz_get_events>, 
  set_events = 0xe1a594 <gdk_window_quartz_set_events>, 
  reparent = 0xe193f4 <gdk_window_quartz_reparent>, 
  clear_region = 0, 
  set_cursor = 0xe19a84 <gdk_window_quartz_set_cursor>, 
  get_geometry = 0xe19b04 <gdk_window_quartz_get_geometry>, 
  get_root_coords = 0xe19e21 <gdk_window_quartz_get_root_coords>, 
  get_deskrelative_origin = 0xe1a051
<gdk_window_quartz_get_deskrelative_origin>, 
  get_pointer = 0xe1a2fa <gdk_window_quartz_get_pointer>, 
  shape_combine_region = 0xe1abe0 <gdk_window_quartz_shape_combine_region>, 
  input_shape_combine_region = 0xe1abe8
<gdk_window_quartz_input_shape_combine_region>, 
  set_static_gravities = 0xe1ac24 <gdk_window_quartz_set_static_gravities>, 
  queue_antiexpose = 0xe0e913 <_gdk_quartz_window_queue_antiexpose>, 
  queue_translation = 0xe0e850 <_gdk_quartz_window_queue_translation>, 
  destroy = 0xe1828a <_gdk_quartz_window_destroy>, 
  input_window_destroy = 0, 
  input_window_crossing = 0
}