error message: Attempt to free unreferenced scalar

[U. B.]

Binary package hint: perl

$ apt-show-versions perl
perl/unknown uptodate 5.8.8-12

The script at this address:
http://www.nntp.perl.org/group/perl.ithreads/2007/06/msg1175.html

still produces the warning/error message:
$ perl /tmp/th.pl
Hello, world
Attempt to free unreferenced scalar: SV 0x76a0c0, Perl interpreter: 0x62f170 during global destruction.

Even though a fix was apparently released starting version 1.53 of threads:
http://www.nntp.perl.org/group/perl.ithreads/2007/06/msg1181.html

But the /usr/lib/perl/5.8.8/threads.pm file looks very old, despite its recent date (2007-11-27)
our $VERSION = '1.07';
(it is not version 1.67 from CPAN with a typo in the version name:
http://search.cpan.org/src/JDHEDDEN/threads-1.67/threads.pm
)

Even though CPAN is now at version 1.69:
http://search.cpan.org/src/JDHEDDEN/threads-1.69/threads.pm

(The same bug appears in Debian sid)

[U. B. (u710bts)]

Sorry, typo:
-> Even though a fix was apparently released starting version 1.63 of threads:
(63, not 53).

[Daniel T Chen (crimsun)]

Jaunty's perl contains v1.67 of the referenced file.