use Fcntl qw( :flock );
my $parent = $ENV{WORK_DIR} || File::Spec->tmpdir;
-my $dir = tempdir( CLEANUP => 1, DIR => $parent );
+our $dir = tempdir( CLEANUP => 1, DIR => $parent );
sub new_fh {
my ($fh, $filename) = tempfile( 'tmpXXXX', DIR => $dir, UNLINK => 1 );