anchor.diff:      sha256 = "01d9wb7sqkmkf2y9bnn3pmhy08khzs5m1d06whxsiwgwnjzfk9mx";
     };
   
  -  buildInputs = [ yosys readline zlib ghdl ];
  -  nativeBuildInputs = [ pkg-config ];
  +  buildInputs = [
  +    yosys
  +    readline
  +    zlib
  +    ghdl
  +  ];
  +  nativeBuildInputs = [
  +    pkg-config
  +  ];
   
     doCheck = true;
     installPhase = ''
  
positive.code: { stdenv, lib, fetchFromGitHub, pkg-config
  , yosys, readline, zlib, ghdl
  }:
  
  stdenv.mkDerivation {
  
negative.code: 
    meta = with lib; {
      description = "GHDL plugin for Yosys";
      homepage    = "https://github.com/ghdl/ghdl-yosys-plugin";
      license     = licenses.isc;
      platforms   = platforms.all;
      maintainers = with maintainers; [ thoughtpolice ];
  