+
+unsigned int utf8_hash_case_bytes (const char *, size_t n, unsigned int basis);
+unsigned int utf8_hash_case_string (const char *, unsigned int basis);
+int utf8_strcasecmp (const char *, const char *);
+int utf8_strncasecmp (const char *, size_t, const char *, size_t);
+char *utf8_to_upper (const char *);
+char *utf8_to_lower (const char *);