#!/usr/bin/perl

use strict;
use warnings;
no warnings qw /syntax/;

my $program = 'open STDERRIN, "<&STDERR" or die $!;
               my $line = <STDERRIN>;  print "YAY!!! $line";';

foreach my $version (qw /5.005 5.6.0 5.6.1 5.8.0 5.8.1/) {
    print "Version $version\n";
    system "/opt/perl/$version/bin/perl -we '$program'"; 
}
 
__END__
Version 5.005
foo
YAY!!! foo
Version 5.6.0
bar
YAY!!! bar
Version 5.6.1
Filehandle STDERRIN opened only for output at -e line 2.
baz
YAY!!! baz
Version 5.8.0
Filehandle STDERRIN opened only for output at -e line 2.
Use of uninitialized value in concatenation (.) or string at -e line 2.
YAY!!! Version 5.8.1
Filehandle STDERRIN opened only for output at -e line 2.
Use of uninitialized value in concatenation (.) or string at -e line 2.
YAY!!!