title: how to use log4cxx under the Red Hat 7
body: <p>I am trying to use log4cxx in my c++ project under the system Red Hat 7.</p>
  
  <p>So I download it with this command: yum install log4cxx.x86_64</p>
  
  <p>After that, I type this command: rpm -ql log4cxx and get this message: </p>
  
  <ul>
  <li>/usr/lib64/liblog4cxx.so.10</li>
  <li>/usr/lib64/liblog4cxx.so.10.0.0</li>
  <li>/usr/share/doc/log4cxx-0.10.0</li>
  <li>/usr/share/doc/log4cxx-0.10.0/KEYS</li>
  <li>/usr/share/doc/log4cxx-0.10.0/LICENSE</li>
  <li>/usr/share/doc/log4cxx-0.10.0/NOTICE</li>
  </ul>
  
  <p>Now I dont know how to use the log4cxx in my project. Where is the head files? Where is the lib files?</p>
  
  <p>thanks in advance.</p>