Hi tye++

Many thanks for the thoughtful response. What you say makes sense, and I will follow-up with Rocco Caputo (POE) and Slaven Rezic (Tk) to see if we can figure out this issue.

BTW: I was able to eliminate the "Free non-Callback" problem by changing the use POE command to be use POE qw (Loop::TkActiveState);

Here is the latest version & output...

mactst.pl: 

use warnings;
use strict;

use Tk;

use POE qw (Loop::TkActiveState);

if(! defined($poe_main_window)) {
    warn "\$poe_main_window not defined";
}

[download]
Working command: 
$ /usr/local/ActivePerl-5.14/bin/perl -c mactst.pl
mactst.pl syntax OK

[download]
Non-working command: 
$ /usr/local/ActivePerl-5.20/bin/perl -c mactst.pl
mactst.pl syntax OK
. (1):
 0 0x1030c4968   IV f=00000001 undef(1)
SV = IV(0x1030c4958) at 0x1030c4968
  REFCNT = 1
  FLAGS = ()
  IV = 0
Abort

[download]

In reply to Re^2: Crashing perl -c in version 5.20? (magic) by cmv
in thread Crashing perl -c in version 5.20? by cmv

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.