title: Can Perl's Getopt::Long parse arguments I don't define ahead of time?
body: <p>I know how to use Perl's Getopt::Long, but I'm not sure how I can configure it to accept <em>any</em> "--key=value" pair that hasn't been explicitly defined and stick it in a hash. In other words, I don't know ahead of time what options the user may want, so there's no way for me to define all of them, yet I want to be able to parse them all.</p>
  
  <p>Suggestions? Thanks ahead of time.</p>