title: Apache 2.4, PHP 5.5.16 on Mint 17 - Module error
body: <p>There appears to be a bug with the newest version of PHP and it's associated packages from DotDeb and the latest version of Apache 2.4 available on Mint.  </p>
  
  <p>PHP 5.5.9, available through the default Mint packages works fine.  No errors, and I can get <code>phpinfo()</code> to display results properly in the browser.  When I upgrade to DotDeb's latest version (5.5.16) and it's associated Apache2 package upgrades, I get the following upon server restart:</p>
  
  <pre><code>$ sudo /etc/init.d/apache2 restart
   * Restarting web server apache2                                         [fail] 
   * The apache2 configtest failed.
  Output of config test was:
  apache2: Syntax error on line 140 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/php5.load: Cannot load /usr/lib/apache2/modules/libphp5.so into server: /usr/lib/apache2/modules/libphp5.so: undefined symbol: unixd_config
  Action 'configtest' failed.
  The Apache error log may have more information.
  </code></pre>
  
  <p>The error log doesn't shed any light on it, despite the suggestion from the error output.  Also note that <em>nothing</em> has changed except for me upgrading PHP versions and the Apache packages that are automatically included.</p>
  
  <p>Looking for a solution elsewhere, I found the following which makes it look like a known bug (<a href="http://osdir.com/ml/debian-apache/2013-07/msg00051.html" rel="nofollow">here</a> and <a href="http://ubuntuforums.org/archive/index.php/t-2163428.html" rel="nofollow">here</a>).</p>
  
  <p>Given that Mint is always a release or two behind Ubuntu, is there a way for me to upgrade Apache 2 itself to the latest version that, presumably, has the bug fix?  A package repo to point to, or something along those lines?</p>