[MacPorts] #29659: gtk3 is broken on macs(all versions)

[MacPorts]

#29659: gtk3 is broken on macs(all versions)
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 Reporter:  krugomvolki@…          |       Owner:  macports-tickets@…                   
     Type:  defect                 |      Status:  new                                  
 Priority:  Normal                 |   Milestone:                                       
Component:  ports                  |     Version:  1.9.2                                
 Keywords:                         |        Port:  gtk3                                 
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 copy&paste, drag-n-drop are broken on mac port of gtk3 due to null or
 uninitialized pointers being dereferenced

 how to reproduce:
 build gtk3 with +no_x11 +quartz variants, run gtk3-demo, select
 "clipboard" demo.
 try to paste text by pressing the button "paste" and see warning in
 console: assertion GDK_IS_DISPLAY(...) failed. text in not inserted in the
 text field;
 try to drag an image at the bottom of window, program crashes with bus
 error. last 2 calls in call stack are:
 #0  0x006c605a in gtk_style_context_save (context=0x14) at
 gtkstylecontext.c:1727
 #1  0x007b099e in gtk_drag_highlight_draw (widget=0x14, cr=0x24a160,
 data=0x0) at gtkdnd-quartz.c:352


 in order to fix these bugs, the following functions must be patched:
 gtk_clipboard_wait_for_contents() in gtk/gtkclipboard-quartz.c

       selection_data = g_slice_new0 (GtkSelectionData);
       selection_data->selection = clipboard->selection;
       selection_data->target = target;
       //FIX: set display!!!!!
       selection_data->display=clipboard->display;

 and

   selection_data = _gtk_quartz_get_selection_data_from_pasteboard
 (clipboard->pasteboard,
                                    target,
                                    clipboard->selection);
   //FIX: set display!!!!!
   if(selection_data)selection_data->display=clipboard->display;


 in gtk/gtkdnd-quartz.c, gtk_style_context_save()

   //GtkStyleContext *context;
   //FIX: initialize pointer before using it!!!!
   GtkStyleContext *context=gtk_widget_get_style_context (widget);
   gtk_style_context_save (context);

 after these patches, i've got  gtk3 working properly on mac os 10.5
 see also: https://bugzilla.gnome.org/show_bug.cgi?id=651224

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Ticket URL: <https://trac.macports.org/ticket/29659>
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