title: Installing pdo_mysql on Amazon EC2 with PHP 5.5
body: <p>I've created an Amazon Linux AMI 2013.09.02 server and installed the following:</p>
  
  <pre><code>yum install php55 php55-mbstring php55-soap php55-gd php55-mcrypt php55-pdo httpd24
  </code></pre>
  
  <p>Apache and PHP work fine.  But I need pdo_mysql.so for a legacy version of Doctrine (1.x).  I cannot find out how to get pdo_mysql.so onto this system.  That file is not within the <code>/user/lib64/php/5.5/modules/</code> folder.</p>
  
  <p>Suggestions?</p>