anchor.diff:            license = lib.licenses.free;
           };
         }) {};
  -    csv-mode = callPackage ({ elpaBuild, fetchurl, lib }:
  +    csv-mode = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
         elpaBuild {
           pname = "csv-mode";
           ename = "csv-mode";
  -        version = "1.7";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/csv-mode-1.7.el";
  -          sha256 = "0r4bip0w3h55i8h6sxh06czf294mrhavybz0zypzrjw91m1bi7z6";
  -        };
  -        packageRequires = [];
  +        version = "1.8";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/csv-mode-1.8.el";
  +          sha256 = "1ywgc61pnawiwfpjgxavfpfxqd3dm9niq6srbc70pd54ca6yqby6";
  +        };
  +        packageRequires = [ emacs ];
           meta = {
             homepage = "https://elpa.gnu.org/packages/csv-mode.html";
             license = lib.licenses.free;
  
positive.code:       elpaBuild {
          pname = "gnorb";
          ename = "gnorb";
          version = "1.6.1";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/gnorb-1.6.1.tar";
            sha256 = "0n4460hsmcc3l0y3nb3fysvh33cjwgv0a3mkc26xcx8v85zl7m63";
          };
          packageRequires = [ cl-lib ];
          meta = {
  
negative.code:       elpaBuild {
          pname = "eev";
          ename = "eev";
          version = "20190902";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/eev-20190902.tar";
            sha256 = "09rk01ykvvmmzadkz8y064iil2sm6ql6qz0rj0jjlnyymi58lj69";
          };
          packageRequires = [ emacs ];
          meta = {
  