Index: future.hpp
===================================================================
--- future.hpp	(revision 62630)
+++ future.hpp	(working copy)
@@ -26,6 +26,8 @@
 #include <list>
 #include <boost/next_prior.hpp>
 #include <vector>
+#include <boost/thread/mutex.hpp>
+#include <boost/thread/condition_variable.hpp>
 
 namespace boost
 {