#!/usr/bin/perl -l

use strict;
use warnings;

BEGIN {
       my $OS_win = ($^O eq "MSWin32") ? 1 : 0;
       print "Perl version: $]";
       print "OS   version: $^O";
                 
       if ($OS_win) {
           print "Loading Windows modules";
           eval "use Win32::SerialPort";
           die "$@" if $@;
       }
       else {
           print "Loading Unix modules";
           eval "use Device::SerialPort";
           die "$@" if $@;
       }
}