<p></p>
<p>yes, exists</p>
<div class="highlight highlight-source-shell"><pre>[safarov@safarov-dell kamailio-upstream]$ docker run -it centos:6
[root@c8b81ef4309e /]<span class="pl-c"><span class="pl-c">#</span> pkg-config --version</span>
0.23</pre></div>
<p>I make changes</p>

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