# define VDf "vd"
# endif
#endif
-
+
+#ifdef PERL_CORE
/* not used; but needed for backward compatibilty with XS code? - RMB */
-#ifndef UVf
-# define UVf UVuf
+# ifndef UVf
+# define UVf UVuf
+# endif
+#else
+# undef UVf
#endif
#ifdef HASATTRIBUTE_FORMAT