+#define XCHARSET_UCS_MIN(cs) CHARSET_UCS_MIN(XCHARSET(cs))
+#define XCHARSET_UCS_MAX(cs) CHARSET_UCS_MAX(XCHARSET(cs))
+#define XCHARSET_CODE_OFFSET(cs) CHARSET_CODE_OFFSET(XCHARSET(cs))
+#define XCHARSET_BYTE_OFFSET(cs) CHARSET_BYTE_OFFSET(XCHARSET(cs))