<p>It's okay, I'm happy to help.  For what it's worth, many people do use mlpack in HPC environments without problems, but to some extent the difficulty is unavoidable.</p>

<p>In your first call to CMake, why did you export the variables <code>ARMADILLO_INCLUDE_DIR</code> and <code>ARMADILLO_LIBRARY</code>?  Use the <code>-D</code> option to CMake instead, like in your second call.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br>Reply to this email directly or <a href="https://github.com/mlpack/mlpack/issues/511#issuecomment-180479683">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/AJ4bFEOKNM4OajVegnYOFEFVRfkXxe8oks5phN68gaJpZM4HPrM8.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
  <link itemprop="url" href="https://github.com/mlpack/mlpack/issues/511#issuecomment-180479683"></link>
  <meta itemprop="name" content="View Issue"></meta>
</div>
<meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>