anchor.diff:  { lib, stdenv, fetchFromGitHub
   , makeWrapper, cmake, llvmPackages
   , flex, bison, elfutils, python, luajit, netperf, iperf, libelf
  -, bash
  +, bash, libbpf
   }:
   
   python.pkgs.buildPythonApplication rec {
  
positive.code:     "-DREVISION=${version}"
      "-DENABLE_USDT=ON"
      "-DENABLE_CPP_API=ON"
    ];
  
    postPatch = ''
  
negative.code:     owner = "iovisor";
      repo = "bcc";
      rev = "v${version}";
      sha256 = "sha256-iLVUwJTDQ8Bn38sgHOcIR8TYxIB+gIlfTgr9+gPU0gE=";
    };
    format = "other";
  
    buildInputs = with llvmPackages; [
      llvm llvm.dev libclang
      elfutils luajit netperf iperf
      flex bash libbpf
    ];
  
    patches = [
  