$OpenBSD: patch-Source_x11_XGDragView_m,v 1.1 2017/04/19 21:21:30 sebastia Exp $

fix warnings, from upstream

--- Source/x11/XGDragView.m.orig	Fri Dec 13 16:03:09 2013
+++ Source/x11/XGDragView.m	Wed Apr 19 09:00:03 2017
@@ -428,7 +428,7 @@ static	XGDragView	*sharedDragView = nil;
   NSCountedSet		*drag_set = [self dragTypesForWindow: win];
 
   winNum = [win windowNumber];
-  window = [isa _windowWithTag: winNum];
+  window = [[self class] _windowWithTag: winNum];
 
   GSEnsureDndIsInitialized ();
 
