anchor.diff:      el-search = callPackage ({ cl-print, elpaBuild, emacs, fetchurl, lib, stream }:
       elpaBuild {
           pname = "el-search";
  -        version = "1.5.4";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/el-search-1.5.4.tar";
  -          sha256 = "1k0makrk3p6hknpnr3kbiszqzw3rpw18gnx2m8scr9vv0wif4qmk";
  +        version = "1.6";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/el-search-1.6.tar";
  +          sha256 = "18pv2l6rl8f9x0yjn4iyf6g94c0ly5mizqg0vxr3m420bkbyk95h";
           };
           packageRequires = [ cl-print emacs stream ];
           meta = {
  
positive.code:       }) {};
      company = callPackage ({ elpaBuild, emacs, fetchurl, lib }: elpaBuild {
          pname = "company";
          version = "0.9.5";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/company-0.9.5.tar";
            sha256 = "1x9c5dw884rv0lvl24ggzdxp2k484w543azdiw55bw01635pg531";
          };
          packageRequires = [ emacs ];
          meta = {
  
negative.code:       }) {};
      exwm = callPackage ({ elpaBuild, fetchurl, lib, xelb }: elpaBuild {
          pname = "exwm";
          version = "0.17";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/exwm-0.17.tar";
            sha256 = "03vgrrrc1d3xr9ydl1ydvmqnvpnzg858dzdky2nd65h9ssyp2f5f";
          };
          packageRequires = [ xelb ];
          meta = {
  