function zshlibs_ensure()
{
  target="${2}"
  typ="${1}"
  if ! test -e "${target}"
  then
    zshlibs_log zshlibs_ensure "creating '${target}' ($typ) …"
    case $typ in
      -d)
        mkdir -p "${target}" \
          || zshlibs_log $0 "unable to create directory '${target}'"  \
          && return 2
        ;;
      -f)
        touch "${target}" \
          || zshlibs_log $0 "unable to create file '${target}'" \
          && return 2
    esac
    zshlibs_log zshlibs_ensure "target '${target}' created"
  elif test "${typ}" "${target}"
  then 
    zshlibs_log zshlibs_ensure "target '${target}' ($typ) present"
    return 0
  else
    zshlibs_log zshlibs_ensure "target '${target}' already exists and it is not a directory"
    return 1
  fi
}