anchor.diff:      (stdenv.lib.enableFeature jedecSupport "jedec-exp")
     ];
   
  -  preConfigure = "./autogen.sh";
  -
     meta = {
       description = "Enhanced, modern tool for communicating over JTAG with flash chips, CPUs,and many more";
       homepage = "http://urjtag.org/";
  
positive.code: { stdenv, autoconf, automake, pkgconfig, gettext, libtool, bison
  , flex, which, subversion, fetchsvn, makeWrapper, libftdi, libusb-compat-0_1, readline
  , python3
  , svfSupport ? true
  , bsdlSupport ? true
  
negative.code: , jedecSupport ? true
  }:
  
  stdenv.mkDerivation rec {
    version = "2019.12";
    pname = "urjtag";
  
    src = fetchurl {
      url = "https://downloads.sourceforge.net/project/urjtag/urjtag/${version}/urjtag-${version}.tar.xz";
      sha256 = "1k2vmvvarik0q3llbfbk8ad35mcns7w1ln9gla1mn7z9c6x6x90r";
    };
  
    nativeBuildInputs = [ pkgconfig ];
  