File _constraints of Package paraview

<constraints>
    <hardware>
      <disk>
        <size unit="G">22</size>
      </disk>
    </hardware>
    <overwrite>
      <conditions>
	<arch>riscv64</arch>
      </conditions>
      <hardware>
	<disk>
	  <size unit="G">25</size>
	</disk>
      </hardware>
    </overwrite>
</constraints>