anchor.diff:      name = "systemtap-${version}";
       src = fetchgit { inherit url rev sha256; };
     nativeBuildInputs = [ pkgconfig ];
  -    buildInputs = [ elfutils gettext python2 pythonPackages.setuptools ];
  +    buildInputs = [ elfutils gettext python2 python2Packages.setuptools ];
       # FIXME: Workaround for bug in kbuild, where quoted -I"/foo" flags would get mangled in out-of-tree kbuild dirs
       postPatch = ''
         substituteInPlace buildrun.cxx --replace \
  
positive.code:   for bin in $stapBuild/bin/*; do # hello emacs */
      ln -s $bin $out/bin
    done
    rm $out/bin/stap
    makeWrapper $stapBuild/bin/stap $out/bin/stap \
      --add-flags "-r $kernelBuildDir" \
      --prefix PATH : ${lib.makeBinPath [ stdenv.cc.cc stdenv.cc.bintools elfutils gnumake ]}
  ''
  
negative.code: { fetchgit, pkgconfig, gettext, runCommand, makeWrapper
  , elfutils, kernel, gnumake, python2, python2Packages
  }:
  
  let
  