File _constraints of Package netcdf-fortran

<constraints>
  <hardware>
    <disk>
      <size unit="G">5</size>
    </disk>
    <memory>
      <size unit="G">5</size>
    </memory>
    <physicalmemory>
      <size unit="G">2</size>
    </physicalmemory>
  </hardware>
</constraints>