title: Cannot configure apache-log4j-extras-1.2.17 with log4j-1.2.17 for time based log rotation and gzipped everyday
body: <p>please I want a detailed description of all the steps that allows me to add log4j-extras (rolling.TimeBasedRollingPolicy) on log4j !!!
  I tried several alternatives but all during startup tomcat => dump catalina: 
  log4j: WARN Unrecognized element rollingPolicy</p>
  
  <p>log4j.xml
          `
          
                  </p>
  
  <pre><code>    &lt;rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy"&gt;
          &lt;param name="FileNamePattern" value="/tmp1/SqlEl.%d{yyyy-MM-dd_HH}.log.gz"/&gt;
          &lt;param name="ActiveFileName" value="/tmp1/SqlEl.log"/&gt;
      &lt;/rollingPolicy&gt;
      &lt;layout class="org.apache.log4j.PatternLayout"&gt;
              &lt;param name="ConversionPattern" value="%d | -%t | -%x | %m\n"/&gt;           
              &lt;/layout&gt;
      &lt;/appender&gt;`
  </code></pre>
  
  <p>thanks in advance</p>