Subroutine POSIX::WNOHANG redefined at
        /usr/local/software/perl-5.8.3/lib/5.8.3/sun4-solaris/POSIX.pm line 48 (#1)
    (W redefine) You redefined a subroutine.  To suppress this warning, say
     
        {
        no warnings 'redefine';
        eval "sub name { ... }";
        }