diff -r b72c6db6890b -r 5dc02b23752f src/gui/widgets/qmainwindowlayout_mac.mm
--- a/src/gui/widgets/qmainwindowlayout_mac.mm	Wed Jun 23 19:07:03 2010 +0300
+++ b/src/gui/widgets/qmainwindowlayout_mac.mm	Tue Jul 06 15:10:48 2010 +0300
@@ -410,7 +410,7 @@
         macToolbar = [[NSToolbar alloc] initWithIdentifier:(NSString *)kQMainWindowMacToolbarID];
         [macToolbar setDisplayMode:NSToolbarDisplayModeIconOnly];
         [macToolbar setSizeMode:NSToolbarSizeModeRegular];
-        [macToolbar setDelegate:[[QCocoaToolBarDelegate alloc] initWithMainWindowLayout:this]];
+        [macToolbar setDelegate:[[QT_MANGLE_NAMESPACE(QCocoaToolBarDelegate) alloc] initWithMainWindowLayout:this]];
         [window setToolbar:macToolbar];
         [macToolbar release];
     }