anchor.diff:    cli11
   }:
   
  -stdenv.mkDerivation rec {
  +# Note that this requires clang < 9.0 to build, and currently
  +# clangStdenv provides clang 7.1 which satisfies the requirement.
  +let stdenv = clangStdenv;
  +
  +in stdenv.mkDerivation rec {
     pname = "ethminer";
     version = "0.18.0";
   
  
positive.code:     platforms = [ "x86_64-linux" ];
      maintainers = with maintainers; [ nand0p ];
      license = licenses.gpl2;
      # Doesn't build with gcc9, and if overlayed to use gcc8 stdenv fails on CUDA issues.
      broken = true;
    };
  
  }
  
negative.code: {
    clangStdenv,
    fetchFromGitHub,
    opencl-headers,
    cmake,
  