I'm working on adding some features to CPAN::Mini::Inject, and it's command line tool mcpani. Right now I'm trying to add support for Module::Signature. The thing is, I want it to be optional. If the user doesn't have Module::Signature installed, I want make install to go smoothely, and I don't want mcpani to freak out when the user uses it.

So, my question to you monks is, what's the best way to handle an optional extra functionality like that? Can you point me to any documents/tutorials that talk about that? CPAN::Mini::Inject uses ExtUtils::ModuleMaker, but documentation relating to Module::Builder would also be great.

Thanks!
--Pileofrogs

Update: Downvote if you want, but say why... Can't get better if you don't say what the problem is.

In reply to Module with optional features by pileofrogs

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.