--- iostreams/detail/config/dyn_link.hpp	2016-11-25 09:42:25.000000000 +0530
+++ patched/iostreams/detail/config/dyn_link_patched.hpp	2016-11-25 09:37:30.000000000 +0530
@@ -31,7 +31,7 @@
 #endif 
 
 #ifndef BOOST_IOSTREAMS_DECL
-# define BOOST_IOSTREAMS_DECL
+# define BOOST_IOSTREAMS_DECL BOOST_SYMBOL_VISIBLE
 #endif
 
 #endif // #ifndef BOOST_IOSTREAMS_DETAIL_CONFIG_DYN_LINK_HPP_INCLUDED