in reply to Roll Call - How new is your Perl?
$work has This is perl, v5.8.8 built for x86_64-linux-gnu-thread-multi on some machines, This is perl, v5.10.1 (*) built for i486-linux-gnu-thread-multi on some others, This is perl 5, version 14, subversion 2 (v5.14.2) built for x86_64-linux-gnu-thread-multi on yet some more. Jenkins knows about 5.8.8 and 5.10.1. I have perlbrew on my workstation so I can cope.
$home has 5.14.2 (+ perlbrews) on the desktop, 5.14.2 on the Raspberry Pi.