      if (.not.have_option("/material_phase[0]/subgridscale_parameterisations/GLS/&                           &scalar_field::GLSTurbulentKineticEnergy/prognostic/&                           &scalar_field::Source/diagnostic/algorithm::Internal")) then         FLExit("You need GLSTurbulentKineticEnergy Source field set to diagnostic/internal")     end if       if (.not.have_option("/material_phase[0]/subgridscale_parameterisations/GLS/&                           &scalar_field::GLSGenericSecondQuantity/prognostic/&                           &scalar_field::Source")) then         FLExit("You need GLSGenericSecondQuantity Source field 