anchor.diff:        }) {};
       trie = callPackage ({ elpaBuild, fetchurl, heap, lib, tNFA }: elpaBuild {
           pname = "trie";
  -        version = "0.2.6";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/trie-0.2.6.el";
  -          sha256 = "1q3i1dhq55c3b1hqpvmh924vzvhrgyp76hr1ci7bhjqvjmjx24ii";
  +        version = "0.4";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/trie-0.4.el";
  +          sha256 = "0869fh3bghxil94wd9vgbb5bk1hx2qkh75vbvp0psmcima8dgzgw";
           };
           packageRequires = [ heap tNFA ];
           meta = {
  
positive.code:       }) {};
      heap = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "heap";
          version = "0.3";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/heap-0.3.el";
            sha256 = "1347s06nv88zyhmbimvn13f13d1r147kn6kric1ki6n382zbw6k6";
          };
          packageRequires = [];
          meta = {
            homepage = "https://elpa.gnu.org/packages/heap.html";
            license = lib.licenses.free;
          };
        }) {};
  
negative.code:     url-http-ntlm = callPackage ({ cl-lib ? null, elpaBuild, fetchurl, lib, ntlm ? null }:
      elpaBuild {
          pname = "url-http-ntlm";
          version = "2.0.4";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/url-http-ntlm-2.0.4.el";
            sha256 = "1cakq2ykraci7d1gl8rnpv4f2f5ffyaidhqb1282g7i72adwmb98";
          };
          packageRequires = [ cl-lib ntlm ];
          meta = {
  