$OpenBSD$
--- sope-appserver/NGObjWeb/DynamicElements/_WOComplexHyperlink.m.orig	Tue Jul 24 15:22:00 2012
+++ sope-appserver/NGObjWeb/DynamicElements/_WOComplexHyperlink.m	Wed Sep 12 08:10:56 2012
@@ -407,7 +407,7 @@ static BOOL debugStaticLinks = NO;
   if (hrefValue == nil)
     return NO;
   
-  if ((*(Class *)hrefValue == NSURLClass) ||
+  if ([hrefValue isMemberOfClass:NSURLClass] ||
       [hrefValue isKindOfClass:NSURLClass]) {
     s = [hrefValue stringValueRelativeToURL:base];
   }