structuredAttrs is enabled

trying https://github.com/libsndfile/libsndfile/commit/2251737b3b175925684ec0d37029ff4cb521d302.patch
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   1577 100   1577   0      0   3713      0                              0