anchor.diff:      "-DREVISION=${version}"
       "-DENABLE_USDT=ON"
       "-DENABLE_CPP_API=ON"
  +    "-DCMAKE_USE_LIBBPF_PACKAGE=ON"
     ];
   
     postPatch = ''
  
positive.code: { lib, stdenv, fetchFromGitHub
  , makeWrapper, cmake, llvmPackages
  , flex, bison, elfutils, python, luajit, netperf, iperf, libelf
  , bash
  }:
  
  python.pkgs.buildPythonApplication rec {
  
negative.code:     description = "Dynamic Tracing Tools for Linux";
      homepage    = "https://iovisor.github.io/bcc/";
      license     = licenses.asl20;
      maintainers = with maintainers; [ ragge mic92 thoughtpolice martinetd ];
    };
  }
  