I think this is how you can do it: 

  eval {
    $SYSOPEN_MODE |= &{ $Fcntl::{'O_NONBLOCK'} };
  };
  if($@) {
    if($@ =~ /Your vendor has not defined/) {
      # OK, we don't have O_NONBLOCK
    } else {
      die "$@"; # Rethrow exception, must be something different
    }
  }

[download]

-- 
Ronald Fischer <ynnor@mm.st>

In reply to Re: Fcntl constants missing by rovf
in thread Fcntl constants missing by nwetters

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