anchor.diff:  
     postPatch = /* Force cython to re-generate files */ ''
       rm src/llfuse.c
  -  '' + ''
  -    sed -i setup.py \
  -      -e '/-Werror=conversion/d'
  -
  -    grep -q '<attr/xattr.h>' src/xattr.h
  -    sed \
  -      -e 's,attr/xattr.h,sys/xattr.h,g' \
  -      -e '\#sys/xattr.h#a#include <attr/attributes.h>' \
  -      -i src/xattr.h
     '';
   
     preBuild = ''
  
positive.code: }:
  
  let
    version = "1.3.4";
  in
  buildPythonPackage {
    name = "llfuse-${version}";
  
negative.code:     package = "llfuse";
      inherit version;
      type = ".tar.bz2";
      sha256 = "6e412a3d9be69162d49b8a4d6fb3c343d1c1fba847f4535d229e0ece2548ead8";
    };
  
    nativeBuildInputs = [
  