title: How to install "pthreads" on OSX, PHP 5.5.30
body: <p>I couldn't find any step-by-step guide how to install this thing on OSX. And I don't want to recompile PHP, if that's possible.</p>
  
  <p>Is there simply a package that I can install from somewhere that will just enable pthreads? I tried with:</p>
  
  <pre><code>pecl install pthreads
  
  pecl/pthreads requires PHP (version &gt;= 7.0.0RC5), installed version is 5.5.30
  No valid packages found
  </code></pre>