an><span class="special">/</span><span class="identifier">classic</span>
</pre>
<p>
      where the directories above contain forwarding headers to the new location
      allowing to maintain application compatibility. The forwarding headers issue
      a warning (starting with Boost V1.38) telling the user to change their include
      paths. Please expect the above directories/forwarding headers to go away soon.
    </p>
<p>
      This explains the need for the directory
    </p>
<pre class="programlistin