--- boost_1_36_0-orig/boost/date_time/constrained_value.hpp	2008-02-28 04:00:24.000000000 +0800
+++ boost_1_36_0/boost/date_time/constrained_value.hpp	2008-11-02 23:04:39.000000000 +0800
@@ -38,7 +38,7 @@
   public:
     typedef typename value_policies::value_type value_type;
     //    typedef except_type exception_type;
-    constrained_value(value_type value) 
+    constrained_value(value_type value) : value_()
     {
       assign(value);
     };