+#ifdef UTF2000
+ charsets[CHAR_CHARSET_ID (charptr_emchar (str))
+ - MIN_LEADING_BYTE] = 1;
+#else /* I'm not sure the definition for UTF2000 works with leading-byte
+ representation. */
+ charsets[CHAR_LEADING_BYTE (charptr_emchar (str))
+ - MIN_LEADING_BYTE] = 1;
+#endif