title: Correct way to import non-less files in less-rails
body: <p>I have been trying to <code>import</code> a normal css file in a less file as described in the <a href="https://github.com/metaskills/less-rails" rel="nofollow"><code>less-rails</code>'</a> documentation using <a href="https://github.com/metaskills/less-rails" rel="nofollow">asset helpers</a>, e.g.:</p>
  
  <pre class="lang-less prettyprint-override"><code>@import asset-url('some/path/to/something.css')
  </code></pre>
  
  <p>without any luck. The output does not change <code>asset-url(...)</code> to <code>url(/assets/...)</code>. And using <a href="http://guides.rubyonrails.org/asset_pipeline.html#manifest-files-and-directives" rel="nofollow">Sprockets' require directive</a> does not result in the correct order of importing dependencies, since it loads the assets before all other assets loaded using less <code>@import</code>.</p>
  
  <p>Is there anything that I'm missing here?</p>
  
  <p>I use <code>rails</code> 3.2 with <code>less-rails</code> 2.4.</p>