anchor.diff:        # Set the built-in state location to something sensible.
         sed -i nova/flags.py \
           -e "/DEFINE.*'state_path'/ s|../|/var/lib/nova|"
  +
  +      substituteInPlace nova/virt/images.py --replace /usr/bin/curl ${curl}/bin/curl
       '';
     
     buildPhase = "python setup.py build";
  
positive.code: 
        mkdir -p $out/etc
        cp etc/nova-api.conf $out/etc/
      '';
  
    doCheck = false; # !!! fix
  
negative.code: { stdenv, fetchurl, pythonPackages, intltool, libvirt, libxml2Python, curl }:
  
  with stdenv.lib;
  
  