use Myconfig qw(%config);

print $config{this}, "\n";
# etc.

## And in your 'Myconfig' package:

package Myconfig;

use strict;
use warnings;

require Exporter;
use vars qw(%config @ISA @EXPORT_OK);
@ISA = qw(Exporter);
@EXPORT_OK = qw(%config);

$config{this} = "that";
$config{here} = "there";
#etc.
1;