anchor.diff:        }) {};
       exwm = callPackage ({ elpaBuild, fetchurl, lib, xelb }: elpaBuild {
           pname = "exwm";
  -        version = "0.11";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/exwm-0.11.tar";
  -          sha256 = "108n09b6512y05rskq754hzwc5nzqmkq1lfrarl34my41wsc1qnf";
  +        version = "0.12";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/exwm-0.12.tar";
  +          sha256 = "1h964w9ir8plam45c194af74g5q1wdvgwrldlmlcplcswlsn3n4z";
           };
           packageRequires = [ xelb ];
           meta = {
  
positive.code:       }) {};
      auctex = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "auctex";
          version = "11.89.6";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/auctex-11.89.6.tar";
            sha256 = "1lfaki8s9ri6ds88mhpxwqb2jrjf7hbs1w3nxhg307344lac07gy";
          };
          packageRequires = [];
          meta = {
  
negative.code:       }) {};
      org = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "org";
          version = "20161118";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/org-20161118.tar";
            sha256 = "1w9g8r08kaiw9f4fjsj0hbffzq85rj734j5lxvbaafbnz7dbklk1";
          };
          packageRequires = [];
          meta = {
  