anchor.diff:        }) {};
       stream = callPackage ({ elpaBuild, emacs, fetchurl, lib }: elpaBuild {
           pname = "stream";
  -        version = "2.2.3";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/stream-2.2.3.el";
  -          sha256 = "1y9nh5473p0dd149g675nybsdnzp8c4mq3wdql066nir7scz6rhy";
  +        version = "2.2.4";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/stream-2.2.4.tar";
  +          sha256 = "1fdjjxfnpzfv5jsy0wmmnrsk821bg8d3magsng609fb2pkwvk1ij";
           };
           packageRequires = [ emacs ];
           meta = {
  
positive.code:       }) {};
      auctex = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "auctex";
          version = "11.90.1";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/auctex-11.90.1.tar";
            sha256 = "0bn5pg6v7zgqxs080bzrsx6789nzdx4622m3020ymzl66017nf0r";
          };
          packageRequires = [];
          meta = {
  
negative.code:     el-search = callPackage ({ elpaBuild, emacs, fetchurl, lib, stream }:
      elpaBuild {
          pname = "el-search";
          version = "1.3.2";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/el-search-1.3.2.tar";
            sha256 = "0lf0hk2pvy9yrb02sa3bg0hipshbgl9m4hx7db46jvmz5bf15nfq";
          };
          packageRequires = [ emacs stream ];
          meta = {
  