We need to include full [io]stream declaration and not just forward declare
them to be able to define classes deriving from them. Surprisingly, including
just <iosfwd> seems to work under most systems but it does not under IRIX.
So include the full <iostream> (or <iostream.h>) to be sure to get what we
need.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63571
c3d73ce0-8a6f-49c7-b76d-
6d57e0e08775
#if wxUSE_STD_IOSTREAM
-#include <iosfwd>
#include "wx/defs.h"
#include "wx/stream.h"
+#include "wx/ioswrap.h"
// ==========================================================================
// wxStdInputStreamBuffer