title: how to tell cpanm Image::Magick about header location?
body: <p>On OS X cpanm Image::Magick fails with</p>
  <blockquote>
  <p>Magick.xs:60:10: fatal error: 'magick/MagickCore.h' file not found</p>
  <p>#include &lt; magick/MagickCore.h&gt;</p>
  </blockquote>
  <p>The file is present though. (That space is from me to have it display here.)</p>
  <p>How can I tell cpanm and/or Image::Magick where to find those headers?</p>
  <p>(IM is installed from source.)</p>