anchor.diff:      gnugo = callPackage ({ ascii-art-to-unicode, cl-lib ? null, elpaBuild, fetchurl, lib, xpm }:
       elpaBuild {
           pname = "gnugo";
  -        version = "3.0.2";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/gnugo-3.0.2.tar";
  -          sha256 = "12xm960awsn2k8ph1yibhrxdg8iz1icifdqimysg3qxljmhmnb3k";
  +        version = "3.1.0";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/gnugo-3.1.0.tar";
  +          sha256 = "0xpjvs250gg71qwapdsb1hlc61gs0gpkjds01srf784fvyxx2gf1";
           };
           packageRequires = [ ascii-art-to-unicode cl-lib xpm ];
           meta = {
  
positive.code:     debbugs = callPackage ({ cl-lib ? null, elpaBuild, fetchurl, lib, soap-client }:
      elpaBuild {
          pname = "debbugs";
          version = "0.12";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/debbugs-0.12.tar";
            sha256 = "1swi4d7fhahimid9j12cypmkz7dlqgffrnhfxy5ra44y3j2b35ph";
          };
          packageRequires = [ cl-lib soap-client ];
          meta = {
  
negative.code:       }) {};
      xpm = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "xpm";
          version = "1.0.4";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/xpm-1.0.4.tar";
            sha256 = "075miyashh9cm3b0gk6ngld3rm8bfgnh4qxnhxmmvjgzf6a64grh";
          };
          packageRequires = [];
          meta = {
  