File   => $file,
     Count  => $versions,
     Gzip   => 'lib',
     Post   => sub{
           open(IN, $pidfile) or die "$pidfile: $!";
           $appid = <IN>;
           chomp $appid;
           kill("HUP", $appid);
               },
     Dir    => '/var/log/old',
     Flock  => 'yes',