1. When you build your Perl from source, configure it, and build it such that features you do not use (threads, for example) are not built.
  2. Having built and installed your Perl, locate the modules you use by searching the code for use Xxxx; statements, and their dependencies, which are all documented, or available by looking in their source. This is not an easy task.
  3. Delete Modules form your installation that you don't use. Be careful, keep backups.

The better answer is don't bother. Ship an entire standard Perl. The few MB in savings you could get may be outweighed by the task you must undertake to create a minimal Perl.

In reply to Re: How to build a minimum perl, module dependencies by pbeckingham
in thread How to build a minimum perl, module dependencies by johnnywang

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.