anchor.diff: -{ lib, stdenv, fetchurl, perl, xz, gmp ? null
  +{ lib, stdenv, buildPackages, fetchurl, perl, xz, gmp ? null
   , aclSupport ? false, acl ? null
   , attrSupport ? false, attr ? null
   , selinuxSupport? false, libselinux ? null, libsepol ? null
  
positive.code: 
        maintainers = [ maintainers.eelco ];
      };
    };
  in
    self
  
negative.code: 
  with lib;
  
  stdenv.mkDerivation rec {
      name = "coreutils-8.26";
  
      src = fetchurl {
  