case "$1" in
stylesheet)
  if [ "$VERBOSE" -ge 1 ]
  then
    echo >&2 "Convert to troff"
  fi
  echo "http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl"
  ;;
post-process)
  [ -e "$XSLT_PROCESSED" ] && rm "$XSLT_PROCESSED"
  cp -- * "$OUTPUT_DIR" 2>/dev/null
  ;;
esac