title: Call to undefined function imagecreatefromjpeg() and GD enabled
body: <p>im working on ubuntu 14.04 LTS with PHP 5.5.9 
  with GD enabled and i doubled check with 
  but still showing me this msg everytime  i try to use imagecreatefromjpeg()</p>
  
  <blockquote>
    <p>Fatal error: Call to undefined function imagecreatefromjpeg() in /../library/image.php on line 34</p>
  </blockquote>
  
  <p>i even tried to check on it from command line by using this</p>
  
  <pre><code>php -r "var_dump(function_exists('imageantialias'));"
  </code></pre>
  
  <p>and it gives me back
  bool(false)</p>
  
  <p>is there anyway to fix this without re compiling it?</p>