anchor.diff:      # enable dummy Demo Instrument (only if code is available)
       USE_DEMOINST = true ;
   
  +    # enable Video Test Patch Generator and 3DLUT device support
  +    # (V2.0.0 and above)
  +    USE_VTPGLUT = false ;
  +
  +    # enable Printer device support
  +    USE_PRINTER = false ;
  +
  +    # enable CMF Measurement device and accessory support (if present)
  +    USE_CMFM = false ;
  +
       # Use ArgyllCMS version of libusb (deprecated - don't use)
       USE_LIBUSB = false ;
   
  -    # For testing CCast
  -    DEFINES += CCTEST_PATTERN ;
  +    # Compile in graph plotting code (Not fully implemented)
  +    USE_PLOT = true ;		# [true]
   
       JPEGLIB = ;
       JPEGINC = ;
  
positive.code:   # in that file is reflected here.
    jamTop = writeText "argyllcms_jamtop" ''
      DESTDIR = "/" ;
      REFSUBDIR = "ref" ;
  
      # Keep this DESTDIR anchored to Jamtop. PREFIX is used literally
      ANCHORED_PATH_VARS = DESTDIR ;
  
negative.code: 
    # Install udev rules, but remove lines that set up the udev-acl
    # stuff, since that is handled by udev's own rules (70-udev-acl.rules)
    postInstall = ''
      rm -v $out/bin/License.txt
      mkdir -p $out/etc/udev/rules.d
      sed -i '/udev-acl/d' usb/55-Argyll.rules
      cp -v usb/55-Argyll.rules $out/etc/udev/rules.d/
    '';
  
    meta = with lib; {
  