+#ifdef USE_ASCII
+static __inline __darwin_ct_rune_t
+__toupper(__darwin_ct_rune_t _c)
+{
+ return _CurrentRuneLocale->__mapupper[_c & 0xff];
+}
+
+static __inline __darwin_ct_rune_t
+__tolower(__darwin_ct_rune_t _c)
+{
+ return _CurrentRuneLocale->__maplower[_c & 0xff];
+}
+//Begin-Libc
+#elif defined(__LIBC__)
+/*
+ * We can't do what we do for __toupper_l() (check for ASCII first, then call
+ * ___toupper_l() otherwise) because versions of ___toupper() before Tiger
+ * assume c >= _CACHED_RUNES. So we are stuck making __toupper() a routine
+ * to hide the extended locale details, outside of Libc.
+ */
+static __inline __darwin_ct_rune_t
+__toupper(__darwin_ct_rune_t _c)