anchor.diff:  
     preBuild = ''
       makeFlagsArray+=(
  -      "DESTDIR=$out"
         "PREFIX=$out"
  +      "SHLIBDIR=$out/lib"
       )
     '';
   
  
positive.code: }:
  
  let
    release = "20161014";
    version = "2.6";
  in
  stdenv.mkDerivation rec {
    name = "libsepol-${version}";
  
negative.code:     url = "https://raw.githubusercontent.com/wiki/SELinuxProject/selinux/"
        + "files/releases/${release}/${name}.tar.gz";
      hashOutput = false;
      sha256 = "57e8fad435055938dbc52b1ff4a0f6b943aad4a01cc7604a881805e84632d861";
    };
  
    nativeBuildInputs = [
  