<p>Added a fatal error if config.hpp is not found in <a href="https://github.com/mlpack/mlpack/commit/cec4ac427536cbd9738a33e0c6facabeeadd31b0" class="commit-link"><tt>cec4ac4</tt></a>.  So hopefully that should help people with future similar issues.</p>

<p>With a bit more digging, I'm not sure why config.hpp doesn't exist in your situation, because it seems like Armadillo usually ships with a pre-configured config.hpp in include/armadillo_bits/.  Maybe this was not the case for 6.200.4...?</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/490#issuecomment-163318980">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/AJ4bFJVB57Caapv7NXOJcYcCJzBu7V4Vks5pOFF6gaJpZM4Gx81A.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/490#issuecomment-163318980"></link>
  <meta itemprop="name" content="View Issue"></meta>
</div>
<meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>