anchor.diff:    openssl,
     pkg-config,
     cli11
  -}@args:
  +}:
   
  -# Note that this requires clang < 9.0 to build, and currently
  -# clangStdenv provides clang 7.1 which satisfies the requirement.
  -let stdenv = if cudaSupport then clangStdenv else args.stdenv;
  -
  -in stdenv.mkDerivation rec {
  +stdenv.mkDerivation rec {
     pname = "ethminer";
     version = "0.19.0";
   
  
positive.code:     platforms = [ "x86_64-linux" ];
      maintainers = with maintainers; [ nand0p atemu ];
      license = licenses.gpl3Only;
      broken = cudaSupport;
    };
  }
  
negative.code:     "-DAPICORE=ON"
      "-DETHDBUS=OFF"
      "-DCMAKE_BUILD_TYPE=Release"
    ] ++ (if cudaSupport then [
      "-DCUDA_PROPAGATE_HOST_FLAGS=off"
    ] else [
      "-DETHASHCUDA=OFF" # on by default
    ]);
  
    nativeBuildInputs = [
      cmake
  