+# define PDS_LEADING_YEAR 1
+# define PDS_TRAILING_YEAR 2
+# define PDS_CENTURY 4
+# define PDS_SECONDS 8
+
+# ifndef PARAMS
+# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+# define PARAMS(Args) Args
+# else
+# define PARAMS(Args) ()
+# endif
+# endif