anchor.diff:    };
   } ''
     mkdir -p $out/bin
  -  for bin in $stapBuild/bin/*; do # hello emacs */
  +  for bin in $stapBuild/bin/*; do
       ln -s $bin $out/bin
     done
     rm $out/bin/stap $out/bin/dtrace
  
positive.code:     src = fetchgit { inherit url rev sha256; };
      nativeBuildInputs = [ pkgconfig ];
      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 \
          'o << "EXTRA_CFLAGS += -I\"" << s.runtime_path << "\"" << endl;' \
          'o << "EXTRA_CFLAGS += -I" << s.runtime_path << endl;'
      '';
      enableParallelBuilding = true;
    };
  
  
negative.code: let
    ## fetchgit info
    url = git://sourceware.org/git/systemtap.git;
    rev = "release-${version}";
    sha256 = "0hckbmrlcz5nj438409fmdjjaaqzf68r2242v10lkssw5daia1gj";
    version = "3.3";
  
    inherit (kernel) stdenv;
    inherit (stdenv) lib;
  