anchor.diff:          packageRequires = [];
           meta = {
             homepage = "https://elpa.gnu.org/packages/poker.html";
  +          license = lib.licenses.free;
  +        };
  +      }) {};
  +    psgml = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
  +        pname = "psgml";
  +        version = "1.3.4";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/psgml-1.3.4.tar";
  +          sha256 = "1pgg9g040zsnvilvmwa73wyrvv9xh7gf6w1rkcx57qzg7yq4yaaj";
  +        };
  +        packageRequires = [];
  +        meta = {
  +          homepage = "https://elpa.gnu.org/packages/psgml.html";
             license = lib.licenses.free;
           };
         }) {};
  
positive.code:       }) {};
      let-alist = callPackage ({ elpaBuild, emacs, fetchurl, lib }: elpaBuild {
          pname = "let-alist";
          version = "1.0.4";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/let-alist-1.0.4.el";
            sha256 = "07312bvvyz86lf64vdkxg2l1wgfjl25ljdjwlf1bdzj01c4hm88x";
          };
          packageRequires = [ emacs ];
          meta = {
  
negative.code:       }) {};
      org = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "org";
          version = "20170124";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/org-20170124.tar";
            sha256 = "0mcnjwvily0xv1xl11dj18lg38llvrxja2j9mwn6vql8n5y1srxi";
          };
          packageRequires = [];
          meta = {
  