anchor.diff:        }) {};
       org = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
           pname = "org";
  -        version = "20170606";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/org-20170606.tar";
  -          sha256 = "0m2gln3wz9v3aflyxxy2317808yy05rrzrjx35spw2d90d10hmkz";
  +        version = "20170622";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/org-20170622.tar";
  +          sha256 = "0922lcbr2r7bkswljqzbm5y3ny1n67qfrmf7h7z9hsw2wy0505dp";
           };
           packageRequires = [];
           meta = {
  
positive.code:     metar = callPackage ({ cl-lib ? null, elpaBuild, fetchurl, lib }:
      elpaBuild {
          pname = "metar";
          version = "0.2";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/metar-0.2.el";
            sha256 = "0rfzq79llh6ixw02kjpn8s2shxrabvfvsq48pagwak1jl2s0askf";
          };
          packageRequires = [ cl-lib ];
          meta = {
  
negative.code:           license = lib.licenses.free;
          };
        }) {};
      websocket = callPackage ({ cl-lib ? null, elpaBuild, fetchurl, lib }:
      elpaBuild {
          pname = "websocket";
          version = "1.8";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/websocket-1.8.tar";
            sha256 = "0dcxmnnm8z7cvsc7nkb822a1g6w03klp7cijjnfq0pz84p3w9cd9";
          };
          packageRequires = [ cl-lib ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/websocket.html";
            license = lib.licenses.free;
  