contrib/packaging/macosx/distribution.xml

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<installer-gui-script minSpecVersion="1">
  <title>Mercurial SCM</title>
  <organization>org.mercurial-scm</organization>
  <options customize="never" require-scripts="false" rootVolumeOnly="true" />
  <welcome file="Welcome.html" mime-type="text/html" />
  <license file="../../../COPYING" mime-type="text/plain" />
  <readme file="Readme.html" mime-type="text/html" />
  <pkg-ref id="org.mercurial-scm.mercurial"
           version="0"
           auth="root"
           onConclusion="none">mercurial.pkg</pkg-ref>
  <choices-outline>
    <line choice="org.mercurial-scm.mercurial"/>
  </choices-outline>
  <choice id="org.mercurial-scm.mercurial" visible="false">
    <pkg-ref id="org.mercurial-scm.mercurial"/>
  </choice>
</installer-gui-script>