<p><a href="https://github.com/bdecato" class="user-mention">@bdecato</a>  It seems to be still picking <code>4.4.7</code>. </p>

<pre><code>The CXX compiler identification is GNU 4.4.7
</code></pre>

<p>Try:</p>

<pre><code>export CC=/usr/usc/gnu/gcc/4.8.1/bin/gcc
export CXX=/usr/usc/gnu/gcc/4.8.1/bin/g++
</code></pre>

<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/447#issuecomment-154190713">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/AJ4bFPmipfIkfo0AfEslQIX1iG5WXQYaks5pC7vSgaJpZM4Foflw.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/447#issuecomment-154190713"></link>
  <meta itemprop="name" content="View Issue"></meta>
</div>
<meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>