<p>Perfect. Thanks for the fast reply.</p>

<p>Indeed that solved the problem.</p>

<p>I had to manually build armadillo because the version available from stable Gentoo is older than what mlpack needs. I didn't make install it so it wouldn't conflict with the older gentoo provided version.</p>

<p>A fatal error would be better indeed. Also, I tried the github version and if I'm not mistaken I didn't even see that warning when trying to build (same linking error too).</p>

<p>Thanks again,<br>
Cássio</p>

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