#!/usr/local/bin/perl
use strict ;
use warnings ;
use Compress::Zlib ;
binmode STDIN;
binmode STDOUT;
my $x = deflateInit()
   or die "Cannot create a deflation stream\n" ;
my ($output, $status) ;
while (<>)
{
    ($output, $status) = $x->deflate($_) ;
    $status == Z_OK
        or die "deflation failed\n" ;
    print $output ;
}
($output, $status) = $x->flush() ;
$status == Z_OK
    or die "deflation failed\n" ;
print $output ;