title: Cannot find -ly error
body: <p>I am trying to run a lexx and yacc program and I got the following error:</p>
  
  <pre class="lang-none prettyprint-override"><code>/usr/bin/ld: cannot find -ly
  collect2: error: ld returned 1 exit status
  </code></pre>
  
  <p>Plz tell me which libraries am I supposed to add?</p>