$OpenBSD$
--- Source/DKEndpointManager.m.orig	Sat Apr  9 11:54:04 2011
+++ Source/DKEndpointManager.m	Sat Apr  9 11:57:39 2011
@@ -45,7 +45,9 @@
 
 #include <sched.h>
 
-@class DKWatcher, GSStackTrace;
+
+@interface GSStackTrace : NSObject @end
+@interface DKWatcher : NSObject <RunLoopEvents> @end
 
 @interface DKEndpoint (Private)
 - (void)_mergeInfo: (NSDictionary*)info;