anchor.diff:            license = lib.licenses.free;
           };
         }) {};
  -    el-search = callPackage ({ elpaBuild, emacs, fetchurl, lib, stream }:
  +    el-search = callPackage ({ cl-print, elpaBuild, emacs, fetchurl, lib, stream }:
       elpaBuild {
           pname = "el-search";
  -        version = "1.5.1";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/el-search-1.5.1.tar";
  -          sha256 = "0bbq59d8x4ncrmpfq54w6rwpp604f1x834b81l7wflwxv7ni5msx";
  -        };
  -        packageRequires = [ emacs stream ];
  +        version = "1.5.3";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/el-search-1.5.3.tar";
  +          sha256 = "095gpanpf88j65cbf4r6c787qxi07kqpvdsh0dsdpg9m3ivmxbra";
  +        };
  +        packageRequires = [ cl-print emacs stream ];
           meta = {
             homepage = "https://elpa.gnu.org/packages/el-search.html";
             license = lib.licenses.free;
  
positive.code:         packageRequires = [];
          meta = {
            homepage = "https://elpa.gnu.org/packages/rainbow-mode.html";
            license = lib.licenses.free;
          };
        }) {};
  
negative.code:     mines = callPackage ({ cl-lib ? null, elpaBuild, emacs, fetchurl, lib }:
      elpaBuild {
          pname = "mines";
          version = "1.6";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/mines-1.6.tar";
            sha256 = "1199s1v4my0qpvc5aaxzbqayjn59vilxbqnywvyhvm7hz088aps2";
          };
          packageRequires = [ cl-lib emacs ];
          meta = {
  