#define BOOST_FORMAT_FWD_HPP
#include <string>
-#include <ostream>
-#include "boost/config.hpp"
+#include <iosfwd>
+
+#include <boost/config.hpp>
namespace boost {
typedef basic_format<char > format;
-#if !defined(BOOST_NO_STD_WSTRING) && !defined(BOOST_NO_STD_WSTREAM)
+#if !defined(BOOST_NO_STD_WSTRING) && !defined(BOOST_NO_STD_WSTREAMBUF)
typedef basic_format<wchar_t > wformat;
#endif