title: How can I install a development package (rawhide) on Fedora 23
body: <p>I am trying to install the lattest <code>armadillo</code> version. From the <a href="https://apps.fedoraproject.org/packages/armadillo-devel" rel="nofollow noreferrer">package list</a> I can see <code>rawhide 7.100.3-2.fc25</code>.</p>
  
  <p>I run <code>Fedora 23</code> and cannot manage to install this package directly.
  So following <a href="https://stackoverflow.com/questions/24968410/install-single-package-from-rawhide/24968411#24968411">this post</a>I did</p>
  
  <pre><code>dnf install fedora-repos-rawhide
  dnf install --enablerepo rawhide armadillo
  </code></pre>
  
  <p>I get: </p>
  
  <pre><code>Last metadata expiration check: 1:16:40 ago on Tue May 31 18:20:30 2016.
  Package armadillo-6.700.6-1.fc23.x86_64 is already installed, skipping.
  </code></pre>
  
  <p>How can I install <code>using dnf</code> the proper package ?</p>