anchor.diff:        libtool
         perl
         pkgconfig
  -      python27
  +      python27Packages.python
         swig
         which
       ];
  
positive.code:     src = apparmor-sources;
  
      buildInputs = [
        python27
        libapparmor
        which
      ];
  
  
negative.code: { stdenv, fetchurl, makeWrapper, autoconf, autoreconfHook, automake, libtool, pkgconfig, perl, which
  , glibc, flex, bison, python27Packages, swig, pam
  }:
  
  let
  