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/usr/include/ITK-4.9/lapack/util/ieeeck.h is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.

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extern v3p_netlib_integer v3p_netlib_ieeeck_(
  v3p_netlib_integer *ispec,
  v3p_netlib_real *zero,
  v3p_netlib_real *one
  );