title: SO_REUSEPORT on linux
body: <p>I want to know if SO_REUSEPORT option is enabled in LINUX 2.6 or not ??</p>
  
  <p>If I try to use it and compile my code I get following error</p>
  
  <pre><code>01.c:72: error: `SO_REUSEPORT' undeclared (first use in this function)
  01.c:72: error: (Each undeclared identifier is reported only once
  01.c:72: error: for each function it appears in.)
  </code></pre>
  
  <p>Using the above option I guess I can bind two different sockets to same IPADRESS and PORT NUMBER</p>