Add Curses development kit

pkgs/development/libraries/cdk/default.nix

···
+{stdenv, fetchurl, ncurses}:
+let
+  buildInputs = [
+    ncurses
+  ];
+in
+stdenv.mkDerivation {
+  name = "cdk";
+  inherit buildInputs;
+  src = fetchurl {
+    url = "http://invisible-island.net/datafiles/release/cdk.tar.gz";
+    sha256 = "00s87kq5x10x22azr6q17b663syk169y3dk3kaj8z6dlk2b8vknp";
+  };
+  meta = {
+    description = ''Curses development kit'';
+    license = stdenv.lib.licenses.bsdOriginal ;
+    maintainers = [stdenv.lib.maintainers.raskin];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

···
 
   ndn-cxx = callPackage ../development/libraries/ndn-cxx { };
 
+  cdk = callPackage ../development/libraries/cdk {};
+
   cimg = callPackage  ../development/libraries/cimg { };
 
   scmccid = callPackage ../development/libraries/scmccid { };