--- libs/thread/build/Jamfile.v2	2013-01-14 17:17:50.000000000 +0000
+++ libs/thread/build/Jamfile.v2	2013-04-18 14:05:07.000000000 +0100
@@ -253,7 +253,6 @@
             }
         }
     }
-    result += <define>BOOST_THREAD_DONT_USE_CHRONO ;
 
     return $(result) ;
 }