__set_errno (ENOSYS);
__set_errno (EOPNOTSUPP);
crypt_r (key, salt, data)     const char *key;     const char *salt;     struct crypt_data *data;{  if (strncmp (md5_salt_prefix, salt, sizeof (md5_salt_prefix) - 1) == 0)    return md5_crypt_r (key, salt, (char *) data, sizeof (struct crypt_data));  /* We don't have DES encryption.  */  __set_errno (ENOSYS);  return NULL;}