anchor.diff:        elpaBuild {
           pname = "so-long";
           ename = "so-long";
  -        version = "1.0";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/so-long-1.0.el";
  -          sha256 = "00z9gnxz32rakd0k7lqaj050fwmqzq5vr9d6rb7ji3fn01rjp7kj";
  +        version = "1.1.1";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/so-long-1.1.1.tar";
  +          sha256 = "0qgdnkb702mkm886v0zv0hnm5y7zlifgx9ji6xmdsxycpsfkjz1f";
           };
           packageRequires = [ emacs ];
           meta = {
  
positive.code:           license = lib.licenses.free;
          };
        }) {};
      shell-command-plus = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
        elpaBuild {
          pname = "shell-command-plus";
  
negative.code:       elpaBuild {
          pname = "ada-mode";
          ename = "ada-mode";
          version = "7.1.7";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/ada-mode-7.1.7.tar";
            sha256 = "0bzykgzc3kx1dgngishsf9w4czq3ig6wvrv3832zlxb7q3rmw8j2";
          };
          packageRequires = [ emacs uniquify-files wisi ];
          meta = {
  