anchor.diff:    '';
   
     meta = with lib; {
  -    description = "dynamic Tracing in Linux";
  +    description = "Dynamic tracing in Linux";
       homepage = "https://wkz.github.io/ply/";
       license = [ licenses.gpl2 ];
       maintainers = with maintainers; [ mic92 mbbx6spp ];
  
positive.code:   src = fetchFromGitHub {
      owner = "iovisor";
      repo = "ply";
      rev = "9e810b157ba079c32c430a7d4c6034826982056e";
      sha256 = "15cp6iczawaqlhsa0af6i37zn5iq53kh6ya8s2hzd018yd7mhg50";
    };
  
    preAutoreconf = ''
  
negative.code: assert kernel != null -> lib.versionAtLeast kernel.version "4.0";
  
  let
    version = "2.1.1";
  in stdenv.mkDerivation {
    pname = "ply";
    inherit version;
  