title: Python statsmodels issue with Cython on intel MKL
body: <p>I am trying to install statsmodels on Intel MKL 3.6.3 distribution (2018 version 1) on a Windows 7 64bit system. </p>
  
  <p>As dependencies statsmodels' state: </p>
  
  <p><strong>Dependencies</strong></p>
  
  <p>statsmodels 0.8 was tested with the following minimal version requirements.</p>
  
  <ul>
  <li>Python >= 2.6, including Python 3.x</li>
  <li>NumPy >= 1.6  </li>
  <li>SciPy >= 0.11</li>
  <li>Pandas >= 0.12  </li>
  <li>Patsy >= 0.2.1  </li>
  <li>Cython >= 0.24 is required to build<br>
  the code from github but not from a source distribution. Earlier<br>
  versions may work, although you must use Cython >= 0.20.1 if you’re<br>
  on Python 3.4.</li>
  </ul>
  
  <p>When I execute <code>pip freeze</code> on Intel Python environment I get:</p>
  
  <ul>
  <li>Python 3.6.3 MKL</li>
  <li>Numpy 1.13.3</li>
  <li>Scipy 0.19.1</li>
  <li>Pandas 0.20.3</li>
  <li>Patsy 0.4.1</li>
  <li>Cython 0.27.1</li>
  </ul>
  
  <p>The error I get is:</p>
  
  <p><a href="https://i.stack.imgur.com/0nPG4.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0nPG4.jpg" alt="enter image description here"></a></p>