use strict;
require WWW::Curl::Easy;
import WWW::Curl::Easy;
my $curl = WWW::Curl::Easy->new;

$curl->setopt(CURLOPT_HEADER,0); # boom

##</code><code>##

use strict;
require WWW::Curl::Easy;
import WWW::Curl::Easy;
my $curl = WWW::Curl::Easy->new;

$curl->setopt(WWW::Curl::Easy::CURLOPT_HEADER,0); # or wherever CURLOPT_HEADER gets declared