testlib.pl:

my $var = "Lord only knows if this will work...";
1;

##</code><code>##

#!/usr/bin/perl -w
use strict;
use CGI::Carp qw(fatalsToBrowser warningsToBrowser);
use CGI ':standard';

require 'testlib.pl';

print "Content-type: text/html\n\n";

print "$var";

exit;