Linux)
    OPSYS=linux
    case `uname -m` in
      *86)
        ARCH=x86
      # we no longer support Linux before the 2.2 kernel.
        case `uname -r` in
          2.2.*) ;;
          2.3.*) ;;
          2.4.*) ;;
          2.5.*) ;;
          2.6.*) ;;
          *) exit 1 ;;
        esac
        ;;
    # As long as we do not natively support the amd64 architecture,
    # we should fallback to the x86 compatibility mode.  --Stef
      x86_64) ARCH=x86;;
      ppc)
        ARCH=ppc
        case `uname -r` in
          *osfmach*) OPSYS=mklinux ;;
          *) ;;
        esac
        ;;
      *) exit 1;;
    esac
    ;;