ifdef out 32-bit Carbon API calls on x86_64

The Mac OS Carbon APIs are not available to 64-bit applications.
This change just ifdefs out calls to them to avoid compiler errors.
In 64-bit, NPP_HandleEvent will have to be rewritten to use the
Cocoa event model.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
(cherry picked from commit 4e01592ec1c27e28e606a75cd5d9848b7da1a821)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

projects/mozilla/vlcshell.cpp

@@ -163,6 +163,7 @@ int16 NPP_HandleEvent( NPP instance, void * event )
         return false;
     }
 
+#ifndef __x86_64__  
     EventRecord *myEvent = (EventRecord*)event;
 
     switch( myEvent->what )
@@ -255,6 +256,7 @@ int16 NPP_HandleEvent( NPP instance, void * event )
         default:
             ;
     }
+#endif // __x86_64__
     return false;
 }
 #endif /* XP_MACOSX */