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);
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);