I found this and more detail at perl.com from March 2001. DL refers to the dynamic loader.

Setting [PERL_DL_NONLAZY] forces the loader to load up all functions at once, so that it can ensure that it really does have code for all the functions it claims to have code for; this is usually what you want to do when testing.

Here's another interesting one from perlrun

PERL_DL_NONLAZY
Set to "1" to have Perl resolve all undefined symbols when it loads a 
+dynamic library. The default behaviour is to resolve symbols when the
+y are used. Setting this variable is useful during testing of extensi
+ons, as it ensures that you get an error on misspelled function names
+ even if the test suite doesn't call them.

[download]

In reply to Re: Tkx and PERL_DL_NONLAZY by Lotus1
in thread Tkx and PERL_DL_NONLAZY by Kirsle

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.