$OpenBSD: patch-src_game_h,v 1.2 2021/01/08 18:43:37 naddy Exp $
Index: src/game.h
--- src/game.h.orig
+++ src/game.h
@@ -210,9 +210,9 @@ class game (protected)
 	void simulate_objects_mt(double delta_t, unsigned idxoff, unsigned idxmod, bool record,
 				 double& nearest_contact);
 
-	class simulate_worker : public thread
+	class simulate_worker : public ::thread
 	{
-		mutex mtx;
+		dd::mutex mtx;
 		condvar cond;
 		condvar condfini;
 		game& gm;
@@ -230,7 +230,7 @@ class game (protected)
 		double sync();
 	};
 
-	thread::auto_ptr<simulate_worker> myworker;
+	::thread::auto_ptr<simulate_worker> myworker;
 
 	player_info playerinfo;
 
