title: Installation of XDEBUG on OSX 10.11
body: <p>When I'm trying install XDEBUG <code>sudo pecl install xdebug</code> - the next error occurred:</p>
  
  <pre><code>Build process completed successfully
  Installing '/usr/lib/php/extensions/no-debug-non-zts-20121212/xdebug.so'
  ERROR: failed to write /usr/lib/php/extensions/no-debug-non-zts-20121212/xdebug.so 
  (copy(/usr/lib/php/extensions/no-debug-non-zts-20121212/xdebug.so): failed to open stream: Operation not permitted)
  </code></pre>
  
  <p>Have you got any ideas how to solve that problem?</p>
  
  <p>Thanks in advance.</p>