ChatGPT says it requires OpenSSL 1.1.1:
The macro TLS1_3_VERSION was added in OpenSSL version 1.1.1. Details:

Macro Definition: 

    #define TLS1_3_VERSION 0x0304

[download]

Purpose: This macro identifies the version number used internally by OpenSSL to denote TLS 1.3 (which is 0x0304, following the convention for TLS versions where 0x0303 is TLS 1.2, and so on).

OpenSSL 1.1.1 Release Date: September 11, 2018

Support: TLS 1.3 support was first introduced in OpenSSL 1.1.1. Earlier versions such as 1.1.0 or 1.0.x do not define this macro or support TLS 1.3 at all.

In reply to Re^2: Can't build Net::AMQP::RabbitMQ by NERDVANA
in thread Can't build Net::AMQP::RabbitMQ by Anonymous Monk

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.