diff --git a/include/boost/shared_ptr.hpp b/include/boost/shared_ptr.hpp
index 5e1abd8..fa08d35 100644
--- a/include/boost/shared_ptr.hpp
+++ b/include/boost/shared_ptr.hpp
@@ -31,7 +31,14 @@
 #include <algorithm>            // for std::swap
 #include <functional>           // for std::less
 #include <typeinfo>             // for std::bad_cast
+
+#if !defined(BOOST_NO_IOSTREAM)
+#if !defined(BOOST_NO_IOSFWD)
 #include <iosfwd>               // for std::basic_ostream
+#else
+#include <ostream>
+#endif
+#endif
 
 #ifdef BOOST_MSVC  // moved here to work around VC++ compiler crash
 # pragma warning(push)
@@ -555,6 +562,8 @@ template<class T> inline T * get_pointer(shared_ptr<T> const & p)
 
 // operator<<
 
+#if !defined(BOOST_NO_IOSTREAM)
+
 #if defined(__GNUC__) &&  (__GNUC__ < 3)
 
 template<class Y> std::ostream & operator<< (std::ostream & os, shared_ptr<Y> const & p)
@@ -584,6 +593,8 @@ template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::
 
 #endif // __GNUC__ < 3
 
+#endif // !defined(BOOST_NO_IOSTREAM)
+
 // get_deleter
 
 #if ( defined(__GNUC__) && BOOST_WORKAROUND(__GNUC__, < 3) ) || \