push sheeet

pkgs/development/ocaml-modules/hashcons/default.nix

@@ -0,0 +1,27 @@
+{
+  lib,
+  fetchFromGitHub,
+  buildDunePackage,
+}:
+
+buildDunePackage rec {
+  pname = "hashcons";
+  version = "1.4";
+
+  src = fetchFromGitHub {
+    owner = "backtracking";
+    repo = "ocaml-${pname}";
+    rev = "d733325eeb55878bed285120c2c088daf78f0e2b";
+    sha256 = "0h4pvwj34pndaw3pajkhl710ywwinhc9pqimgllfmkl37wz2d8zq";
+  };
+
+  useDune2 = true;
+
+  doCheck = true;
+
+  meta = {
+    description = "OCaml hash-consing library";
+    license = lib.licenses.lgpl21;
+    maintainers = [ lib.maintainers.ulrikstrid ];
+  };
+}