anchor.diff:  { stdenv, fetchFromGitHub
   , cmake, pkgconfig, flex, bison
  -, llvmPackages, kernel, elfutils, libelf, bcc
  +, llvmPackages, kernel, elfutils
  +, libelf, libbfd, libbpf, libopcodes, bcc
   }:
   
   stdenv.mkDerivation rec {
     pname = "bpftrace";
  -  version = "0.9.4";
  +  version = "0.11.0";
   
     src = fetchFromGitHub {
       owner  = "iovisor";
       repo   = "bpftrace";
       rev    = "refs/tags/v${version}";
  -    sha256 = "00fvkq3razwacnpb82zkpv63dgyigbqx3gj6g0ka94nwa74i5i77";
  +    sha256 = "02f2r731yj3fdc8341id1ksk4dma9rwm2765n2xgx2ldrrz5823y";
     };
   
     enableParallelBuilding = true;
  
positive.code:   #
    cmakeFlags =
      [ "-DBUILD_TESTING=FALSE"
        "-DLIBBCC_INCLUDE_DIRS=${bcc}/include/bcc"
      ];
  
    # nuke the example/reference output .txt files, for the included tools,
  
negative.code:   buildInputs = with llvmPackages;
      [ llvm clang-unwrapped
        kernel elfutils libelf bcc
        libbpf libbfd libopcodes
      ];
  
    nativeBuildInputs = [ cmake pkgconfig flex bison ]
  