A more ambitious set of possible symbols can be found in
sfio.h (inside an _cplusplus gard).
*/
-#if !defined(_STDIO_H) && !defined(FILE) && !defined(_STDIO_INCLUDED)
+#if !defined(_STDIO_H) && !defined(FILE) && !defined(_STDIO_INCLUDED) && !defined(__STDIO_LOADED)
#define _STDIO_H
#define _STDIO_INCLUDED
+#define __STDIO_LOADED
struct _FILE;
#define FILE struct _FILE
#endif