case "$which_graphic_lib" in
  qt|Qt) if test -z "$with_qt"; then with_qt=yes; fi ;;
esac
if test -n "$with_qt"; then
  which_graphic_lib=qt
  QTDIR=
  case "$with_qt" in
  yes)
     pth="/usr/local/lib /usr/local/share /usr/lib /usr/share"
     QTDIR=`locatedir qt/bin $pth`
     if test -z "$QTDIR"; then
       QTDIR=`locatedir qt3/bin $pth`
       if test -z "$QTDIR"; then
         QTDIR=`locatedir qt2/bin $pth`
       fi
     fi;
     QTDIR=`dirname $QTDIR`;;
  *) if test ! -d "$with_qt"; then
      echo "### Qt directory '$with_qt' not found"
    else
      QTDIR=$with_qt
    fi;;
  esac
  if test -n "$QTDIR"; then
    case "$QTDIR" in /) QTDIR=;; esac
    exe=$osname-$arch-Qt$$
    if ($CC $extraflag -o $exe ansi.c -L$QTDIR/lib -lqt-mt 2>/dev/null); then
      QTLIB=-lqt-mt
    else
      QTLIB=-lqt
    fi
    rm -f $exe $exe$exe_suff
    echo "Using Qt library, QTDIR = $QTDIR, QTLIB = $QTLIB"
  else
    echo "### Qt not found. Building without Qt support"
    which_graphic_lib=none
  fi
fi