use Config;

my $PVOBTAG;

if ($Config{'osname'} eq 'MSWin32') {
	$PVOBTAG = '\cc5-pvob1';
}
else {
	$PVOBTAG = '';
}

my $STREAM = "stream:".$ENV{"CLEARCASE_STREAM"};
my $ATTYPE = "attype:deliver_in_progress\@$PVOBTAG";

print `cleartool rmattr -nc $ATTYPE $STREAM`;