G'day BrowserUk,

[The following Perl documentation links are all for the current (5.18.2) version.]

"perlport: Supported Platforms" lists ARM. (Note the first line of that section starts with "The following platforms are known to build Perl 5.12 ...")

There are a number of links to files in the Cross/ directory of http://search.cpan.org/~rjbs/perl-5.18.2/MANIFEST that have information about cross-compiling ARM (not just the ones with arm in the filename).

"todo: Cross-compile support" mentions ARM a couple of times. Maybe consider some of this (e.g. "none are documented well", "code is almost 10 years old", etc.) as a caveat, or at least a notification of limitations, with respect to information you find elsewhere.

The search function of http://www.arm.com/ finds over 200 results for "perl". I didn't investigate this further.