anchor.diff:            license = lib.licenses.free;
           };
         }) {};
  -    enwc = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
  +    enwc = callPackage ({ elpaBuild, emacs, fetchurl, lib }: elpaBuild {
           pname = "enwc";
  -        version = "1.0";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/enwc-1.0.tar";
  -          sha256 = "19mjkcgnacygzwm5dsayrwpbzfxadp9kdmmghrk1vir2hwixgv8y";
  -        };
  -        packageRequires = [];
  +        version = "2.0";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/enwc-2.0.tar";
  +          sha256 = "17w35b06am5n19nlq00ni5w3jvys9i7swyw4glb7081d2jbij2mn";
  +        };
  +        packageRequires = [ emacs ];
           meta = {
             homepage = "https://elpa.gnu.org/packages/enwc.html";
             license = lib.licenses.free;
  
positive.code:       }) {};
      ivy = callPackage ({ elpaBuild, emacs, fetchurl, lib }: elpaBuild {
          pname = "ivy";
          version = "0.9.0";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/ivy-0.9.0.tar";
            sha256 = "1p5gfy16xik613ib30mv4yac004z4lpsybmraln1badyd6n3b07s";
          };
          packageRequires = [ emacs ];
          meta = {
  
negative.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 = {
  