Fix #398, as long as the macros BOOST_NO_STD_TYPEINFO and BOOST_NO_IOSTREAM are defined. I don't know how Boost.Config needs to be changed to autodetect eVC4 and set these on its own.

[SVN r43318]

libs/smart_ptr

@@ -1 +1 @@
-Subproject commit a055d9829e66c190012fbe1c9ec3f752208df9e6
+Subproject commit 3a4dc43924cbf6be6378491cd16c2945d37cadbb