title: Multi-platform bindings.gyp for node-gyp addon compilation
body: <p>I have a node addon that I am compiling with <code>node-gyp</code>, it depends on libgfortran, that I install differently in different operating systems.</p>
  <p>In alpine</p>
  <pre class="lang-sh prettyprint-override"><code>apk add libgfortran
  </code></pre>
  <p>Will create <code>/usr/lib/libgfortran.so.5</code></p>
  <p>In ubuntu</p>
  <pre class="lang-sh prettyprint-override"><code>apt-get install gfortran
  </code></pre>
  <p>Will create <code>/usr/lib/x86_64-linux-gnu/libgfortran.so.5.0.0</code></p>
  <p>How can I specify the libraries in a way that it will work in either ubuntu or alpine.</p>