anchor.diff:      el-search = callPackage ({ elpaBuild, emacs, fetchurl, lib, stream }:
       elpaBuild {
           pname = "el-search";
  -        version = "1.4.0.4";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/el-search-1.4.0.4.tar";
  -          sha256 = "1l3wb0g6ipyi8yimxah0z6r83376l22pb2s9ba6kxfmhsq5wyc8a";
  +        version = "1.4.0.8";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/el-search-1.4.0.8.tar";
  +          sha256 = "1gk42n04f1h2vc8sp86gvi795qgnvnh4cyyqfvy6sz1pfix76kfl";
           };
           packageRequires = [ emacs stream ];
           meta = {
  
positive.code:       }) {};
      ivy = callPackage ({ elpaBuild, emacs, fetchurl, lib }: elpaBuild {
          pname = "ivy";
          version = "0.9.1";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/ivy-0.9.1.tar";
            sha256 = "1jfc3zf6ln7i8pp5j0fpsai2w847v5g77b5fzlxbgvj80g3v5887";
          };
          packageRequires = [ emacs ];
          meta = {
  
negative.code:       }) {};
      org = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "org";
          version = "20171205";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/org-20171205.tar";
            sha256 = "0a1rm94ci47jf5579sxscily680ysmy3hnxjcs073n45nk76za04";
          };
          packageRequires = [];
          meta = {
  