title: dyld[38909]: symbol not found in flat namespace '_yylex'
body: <p>I have recently upgraded all installed components in macports.</p>
  <p>Post the upgradation, cscope has stopped working.</p>
  <p>when invoked on commandlind it exits with the following error</p>
  <pre><code>$  cscope
  dyld[39064]: symbol not found in flat namespace '_yylex'
  Abort
  </code></pre>
  <p>flex is installed and its lib is also available in the path</p>
  <p>Any pointers in this will helpful</p>