anchor.diff:      "--enable-largefile"
       "--disable-internal-docs"
       "--disable-docs"
  -    "--${boolWt (libjpeg-turbo_1-4 != null)}-jpeg"
  +    "--${boolWt (libjpeg-turbo != null)}-jpeg"
       "--with-camlibs=all"
     ];
   
  
positive.code:   buildInputs = [
      libexif
      libgd
      libjpeg-turbo_1-4
      libusb
      libxml2
      #lockdev
  
negative.code: 
  , libexif
  , libgd
  , libjpeg-turbo
  #, libltdl
  , libusb
  , libxml2
  