anchor.diff:      url = "https://raw.githubusercontent.com/wiki/SELinuxProject/selinux/"
         + "files/releases/${release}/${name}.tar.gz";
       hashOutput = false;
  -    sha256 = "4ea2dde50665c202253ba5caac7738370ea0337c47b251ba981c60d24e1a118a";
  +    sha256 = "2229b6ef6cee73d335fb3d9f763e167fe182e70cd045e18f975bd2f9d0d9d6dd";
     };
   
     nativeBuildInputs = [
  
positive.code: }:
  
  let
    release = "20161014";
    version = "2.6";
  in
  stdenv.mkDerivation rec {
    name = "libselinux-${version}";
  
negative.code:   '';
  
    preBuild = ''
      makeFlagsArray+=(
        "PREFIX=$out"
        "SHLIBDIR=$out/lib"
      )
    '';
  
  