anchor.diff:    ListBinarySearch = buildPerlPackage {
       pname = "List-BinarySearch";
       version = "0.25";
  -    src = pkgs.fetchurl {
  +    src = fetchurl {
         url = "mirror://cpan/authors/id/D/DA/DAVIDO/List-BinarySearch-0.25.tar.gz";
         sha256 = "0ap8y9rsjxg75887klgij90mf459f8dwy0dbx1g06h30pmqk04f8";
       };
  
positive.code: 
  { config
  , stdenv, buildPackages, pkgs
  , fetchurl, fetchpatch, fetchFromGitHub
  , perl, overrides, buildPerl, shortenPerlShebang
  }:
  
  
negative.code:     };
      perlPreHook = "export LD=$CC";
      preCheck = "rm t/core_audiospec.t";
      buildInputs = [ pkgs.SDL pkgs.SDL_gfx pkgs.SDL_mixer pkgs.SDL_image pkgs.SDL_ttf pkgs.SDL_Pango pkgs.SDL_net AlienSDL CaptureTiny TestDeep TestDifferences TestException TestMost TestWarn ];
      propagatedBuildInputs = [ FileShareDir TieSimple ];
      meta = {
        description = "SDL bindings to Perl";
  