#include "wx/datetime.h"
#include "wx/filename.h"
-class wxFSFile;
-class wxFileSystemHandler;
-class wxFileSystem;
+class WXDLLIMPEXP_BASE wxFSFile;
+class WXDLLIMPEXP_BASE wxFileSystemHandler;
+class WXDLLIMPEXP_BASE wxFileSystem;
//--------------------------------------------------------------------------------
// wxFSFile