I guess the problem comes from the Perl debugger restarting itself via exec $0 ..., which is only emulated under Windows and thus quite unlikely to work at all. If you look in C:/Perl/lib/perl5db.pl, line 3296 (in my case, it was line 2800), there is the handling of the R letter/command. The line number and error refer to an error in perl5db.pl and not an error in your script.

The change in behaviour likely stems from changes in the C-code of POSIX.pm or Perl itself.

In reply to Re: Perl Debugger v1.28 can't be restarted in Activestate Perl Ver 5.8.7 build 815? by Corion
in thread Perl Debugger v1.28 can't be restarted in Activestate Perl Ver 5.8.7 build 815? by hlampert

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.