OK, I've narrowed this down to something funky in Exporter. Removing all traces of Exporter from the UserCache module and calling subs by fully qualified name in the Apache Auth* handlers has completely fixed it and life has returned to normal - ie my() works as expected.

I'm going to have much more of a poke through the mod_perl mailing lists now and see if this is a manifestation of the accidental closure issue.

Thanks for helping me bounce this around. If anyone has any ideas why this behaviour happens when using Exporter as above then please please let me know :)

Cheers!

In reply to Re: package scoped my() variable in module under mod_perl 5.6 vs 5.8 by njaph
in thread package scoped my() variable in module under mod_perl 5.6 vs 5.8 by njaph

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.