diff --git a/nix/sources.json b/nix/sources.json

index 16b9e40a4cd4a35e3d38cdfed6a325e1265bbad8..f382b0962e1ad4af3c1c9f190c5ccfbfb4304df2 100644

--- a/nix/sources.json

+++ b/nix/sources.json

@@ -139,6 +139,20 @@ "type": "tarball",

     "url": "https://github.com/mhulden/foma/archive/b44022c7d9d347dc7392aabbf72c82e558767675.tar.gz",

     "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"

 },

• "gdcv": {

•    "branch": "master",
  

•    "builtin": false,
  

•    "date": "2020-09-28T19:00:09Z",
  

•    "description": "GoldenDict console version and emacs dynamic module",
  

•    "homepage": "https://github.com/konstare/gdcv",
  

•    "owner": "konstare",
  

•    "repo": "gdcv",
  

•    "rev": "39fd2667362710f69c13dd596e112b0391e0a57e",
  

•    "sha256": "1v9micdr6fml1lbhxndbynghrajix5vgp8qg7b7bdsa2wngzlr16",
  

•    "type": "tarball",
  

•    "url": "https://github.com/konstare/gdcv/archive/39fd2667362710f69c13dd596e112b0391e0a57e.tar.gz",
  

•    "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
  

• },

 "gef": {

     "branch": "dev",

     "builtin": false,

diff --git a/pkgs/tools/dict/gdcv/default.nix b/pkgs/tools/dict/gdcv/default.nix

new file mode 100644

index 0000000000000000000000000000000000000000..a44f5084a91a031c051c644c0232877ceca03674

--- /dev/null

+++ b/pkgs/tools/dict/gdcv/default.nix

@@ -0,0 +1,28 @@

+{ stdenv, pkgconfig, emacs, zlib, sources }:

+let

• pname = "gdcv";

• date = stdenv.lib.substring 0 10 sources.gdcv.date;

• version = "unstable-" + date;

+in

+stdenv.mkDerivation {

• inherit pname version;

• src = sources.gdcv;

• nativeBuildInputs = [ pkgconfig ];

• buildInputs = [ emacs zlib ];

• makeFlags = [ "gdcv" "emacs-module" ];

• installPhase = ''

• install -Dm755 gdcv -t $out/bin

• install -Dm644 gdcv-elisp.so gdcv.el -t $out/share/emacs/site-lisp

• '';

• meta = with stdenv.lib; {

• inherit (sources.gdcv) description homepage;

• license = licenses.gpl3;

• maintainers = [ maintainers.sikmir ];

• platforms = platforms.unix;

• };

+}