I would like to use Test::Deep, which in turn requires Scalar::Util:

$ perl
use strict;
use warnings;
use Test::Deep;
__END__
Weak references are not implemented in the version of perl at /usr/lib
+/perl5/5.8.5/Test/Deep/Cache/Simple.pm line 7
[download]

ENV:

Module id = Scalar::Util
    CPAN_VERSION 1.19
    INST_VERSION 1.19
Module id = Test::Deep
    CPAN_VERSION 0.100
    INST_VERSION 0.096

$ perl -v
This is perl, v5.8.5 built for i386-linux-thread-multi
$ uname -srvmpo
Linux 2.6.9-55.0.12.EL #1 Fri Nov 2 10:57:39 EDT 2007 i686 i686 GNU/Li
+nux
[download]

Is there anything I can do in order to use Test::Deep in the given environment? Alternatively, are there any other modules that allows testing of complex data structures?

Update Fri Feb 1 21:48:07 CET 2008: Resolved by a simple cpan> force install Scalar::Util. Many thanks to almut and chromatic for helpful advice.

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