anchor.diff:    installPhase = ''
       install -Dm755 ./bundles/${version}/dynbinary/docker-${version} $out/libexec/docker/docker
       install -Dm755 ./bundles/${version}/dynbinary/dockerinit-${version} $out/libexec/docker/dockerinit
  -    makeWrapper $out/libexec/docker/docker $out/bin/docker --prefix PATH : "${iproute}/sbin:sbin:${lxc}/bin:${iptables}/sbin:${e2fsprogs}/sbin:${xz}/bin:${utillinux}/bin"
  +    makeWrapper $out/libexec/docker/docker $out/bin/docker \
  +      --prefix PATH : "${iproute}/sbin:sbin:${iptables}/sbin:${e2fsprogs}/sbin:${xz}/bin:${utillinux}/bin:${optionalString enableLxc "${lxc}/bin"}"
   
       # systemd
       install -Dm644 ./contrib/init/systemd/docker.service $out/etc/systemd/system/docker.service
  
positive.code:     sha256 = "0nwd5wsw9f50jh4s5c5sfd6hnyh3g2kmxcrid36y1phabh30yrcz";
    };
  
    buildInputs = [ makeWrapper go sqlite lxc iproute bridge-utils devicemapper btrfsProgs iptables e2fsprogs ];
  
    dontStrip = true;
  
  
negative.code: { stdenv, fetchFromGitHub, makeWrapper
  , go, sqlite, iproute, bridge-utils, devicemapper
  , btrfsProgs, iptables, e2fsprogs, xz, utillinux
  , enableLxc ? false, lxc
  }:
  
  # https://github.com/docker/docker/blob/master/project/PACKAGERS.md
  
  with stdenv.lib;
  
  stdenv.mkDerivation rec {
    name = "docker-${version}";
  