$ cat ConfigThisJunk.pm
package ConfigThisJunk;
use strict;
use warnings;
BEGIN
{
    use Exporter;
    our @ISA = qw( Exporter );
    our @EXPORT_OK = qw( $DEBUG );
}
our $DEBUG = 1;
1;

$ perl -wle'use strict; use ConfigThisJunk qw( $DEBUG ); print $DEBUG'
1