#ifdef FGFS
# include <simgear/compiler.h>
-# ifdef FG_HAVE_STD_INCLUDES
-# include <iostream>
-# include <fstream>
-# else
-# include <iostream.h>
-# include <fstream.h>
-# endif
+# include STL_IOSTREAM
+# include STL_FSTREAM
#else
# include <iostream>
# include <fstream>