OS X bus error in 0.86

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Just to keep track of it, the "Bus Error" is still present on MacOS X 
with Perl/Tk and PAR 0.86.  The following testcase will generate the 
error on OS X 10.3:

SCRIPT:
#!/usr/bin/perl

use warnings;
use strict;

use Tk;

my $mw = MainWindow->new;

MainLoop;
###

PAR OPTIONS:
Kenbridge:~ minter$ pp -o tk tk.pl

RUN OPTIONS:
Kenbridge:~ minter$ ./tk
Bus error
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