From c392f5a18f3eeea91b33e31ca7f5971bee9833b8 Mon Sep 17 00:00:00 2001
From: Sylvain Pion <Sylvain.Pion@sophia.inria.fr>
Date: Thu, 18 Oct 2007 15:01:10 +0000
Subject: [PATCH] Use CGAL_HAS_THREADS.

---
 Filtered_kernel/include/CGAL/Lazy.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Filtered_kernel/include/CGAL/Lazy.h b/Filtered_kernel/include/CGAL/Lazy.h
index dd865f27898..fabcca4e1b9 100644
--- a/Filtered_kernel/include/CGAL/Lazy.h
+++ b/Filtered_kernel/include/CGAL/Lazy.h
@@ -1095,7 +1095,7 @@ public :
 */
 
   Lazy()
-#if 0 // Optimization disabled for improved thread safety.
+#ifndef CGAL_HAS_THREADS
     : Handle(zero()) {}
 #else
   {