-#define MODE_INVALID (struct mode_change *) 0
-#define MODE_MEMORY_EXHAUSTED (struct mode_change *) 1
-#define MODE_BAD_REFERENCE (struct mode_change *) 2
-
-#ifndef __P
-# if defined (__GNUC__) || (defined (__STDC__) && __STDC__)
-# define __P(Args) Args
-# else
-# define __P(Args) ()
+# define MODE_INVALID (struct mode_change *) 0
+# define MODE_MEMORY_EXHAUSTED (struct mode_change *) 1
+# define MODE_BAD_REFERENCE (struct mode_change *) 2
+
+# ifndef PARAMS
+# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+# define PARAMS(Args) Args
+# else
+# define PARAMS(Args) ()
+# endif