diff -rupN boost_1_43_0/boost/date_time/c_time.hpp boost_vms_1_43_0/boost/date_time/c_time.hpp
--- boost_1_43_0/boost/date_time/c_time.hpp	2010-01-10 21:17:23.000000000 +0200
+++ boost_vms_1_43_0/boost/date_time/c_time.hpp	2010-07-11 11:34:20.000000000 +0300
@@ -57,7 +57,15 @@ namespace date_time {
       static std::tm* localtime(const std::time_t* t, std::tm* result)
       {
         // localtime_r() not in namespace std???
+ 	#if defined(__VMS) && __INITIAL_POINTER_SIZE == 64
+ 	std::tm tmp;
+ 	if(!localtime_r(t,&tmp))
+            result = 0;
+	else
+            *result = tmp;	
+ 	#else
         result = localtime_r(t, result);
+	#endif
         if (!result)
           boost::throw_exception(std::runtime_error("could not convert calendar time to local time"));
         return result;
@@ -67,7 +75,15 @@ namespace date_time {
       static std::tm* gmtime(const std::time_t* t, std::tm* result)
       {
         // gmtime_r() not in namespace std???
+ 	#if defined(__VMS) && __INITIAL_POINTER_SIZE == 64
+ 	std::tm tmp;
+ 	if(!gmtime_r(t,&tmp))
+          result = 0;
+        else
+          *result = tmp;	
+	#else
         result = gmtime_r(t, result);
+	#endif
         if (!result)
           boost::throw_exception(std::runtime_error("could not convert calendar time to UTC time"));
         return result;