anchor.diff:  let
     modDestDir = "$out/lib/modules/${kernel.modDirVersion}/extra/openafs";
     kernelBuildDir = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/build";
  +
  +  fetchBase64Patch = args: (fetchpatch args).overrideAttrs (o: {
  +    postFetch = "mv $out p; base64 -d p > $out; " + o.postFetch;
  +  });
   
   in
   stdenv.mkDerivation {
  
positive.code:     ++ kernel.moduleBuildDependencies;
  
    buildInputs = [ libkrb5 ];
  
    hardeningDisable = [ "pic" ];
  
  
negative.code: , perl
  , libtool_2
  , libkrb5
  , fetchpatch
  }:
  
  with (import ./srcs.nix {
  