anchor.diff:            url = "https://elpa.gnu.org/packages/ioccur-2.4.el";
             sha256 = "1isid3kgsi5qkz27ipvmp9v5knx0qigmv7lz12mqdkwv8alns1p9";
           };
  -        packageRequires = [];
  +        packageRequires = [ cl-lib emacs ];
           meta = {
             homepage = "https://elpa.gnu.org/packages/ioccur.html";
             license = lib.licenses.free;
  
positive.code:       elpaBuild {
          pname = "sql-indent";
          ename = "sql-indent";
          version = "1.4";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/sql-indent-1.4.tar";
            sha256 = "1nilxfm30nb2la1463729rgbgbma7igkf0z325k8cbapqanb1wgl";
          };
          packageRequires = [ cl-lib ];
          meta = {
  
negative.code:       elpaBuild {
          pname = "tramp";
          ename = "tramp";
          version = "2.4.3.3";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/tramp-2.4.3.3.tar";
            sha256 = "1di9ia59k6x7j9r8flwf05r160j30nrg0jvq5fjc9iazag9lniyw";
          };
          packageRequires = [ emacs ];
          meta = {
  