anchor.diff:          packageRequires = [ cl-print emacs stream ];
           meta = {
             homepage = "https://elpa.gnu.org/packages/el-search.html";
  +          license = lib.licenses.free;
  +        };
  +      }) {};
  +    eldoc = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
  +      elpaBuild {
  +        pname = "eldoc";
  +        ename = "eldoc";
  +        version = "1.0.0";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/eldoc-1.0.0.el";
  +          sha256 = "0jdqnndvpz929rbfgrm2bgw3z2vp7dvvgk3wnhvlhf63mdiza89m";
  +        };
  +        packageRequires = [ emacs ];
  +        meta = {
  +          homepage = "https://elpa.gnu.org/packages/eldoc.html";
             license = lib.licenses.free;
           };
         }) {};
  
positive.code:         packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/xr.html";
            license = lib.licenses.free;
          };
        }) {};
  
negative.code:         packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/posframe.html";
            license = lib.licenses.free;
          };
        }) {};
      project = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
        elpaBuild {
          pname = "project";
          ename = "project";
          version = "0.1.2";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/project-0.1.2.el";
            sha256 = "0713hwim1chf6lxpg1rb234aa1gj92c153fjlc4jddp6dzzgn50d";
          };
          packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/project.html";
            license = lib.licenses.free;
          };
        }) {};
  