From aa7fbe4d2ef0a21baa6b450e112f2351b881f632 Mon Sep 17 00:00:00 2001
From: Patrick Mahoney <pat@polycrystal.org>
Date: Sat, 1 Jun 2019 20:33:22 -0500
Subject: [PATCH] ocamlPackages.hmap: init at 0.8.1

---
 .../ocaml-modules/hmap/default.nix            | 41 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 +
 2 files changed, 43 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/hmap/default.nix

diff --git a/pkgs/development/ocaml-modules/hmap/default.nix b/pkgs/development/ocaml-modules/hmap/default.nix
new file mode 100644
index 00000000000..563d39909c8
--- /dev/null
+++ b/pkgs/development/ocaml-modules/hmap/default.nix
@@ -0,0 +1,41 @@
+{ stdenv
+, lib
+, fetchurl
+, findlib
+, ocaml
+, ocamlbuild
+, topkg
+}:
+
+let
+  minimumSupportedOcamlVersion = "4.02.0";
+in
+assert lib.versionOlder minimumSupportedOcamlVersion ocaml.version;
+
+stdenv.mkDerivation rec {
+	pname = "hmap";
+  version = "0.8.1";
+  name = "ocaml${ocaml.version}-${pname}-${version}";
+
+  src = fetchurl {
+    url = "http://erratique.ch/software/hmap/releases/${pname}-${version}.tbz";
+    sha256 = "10xyjy4ab87z7jnghy0wnla9wrmazgyhdwhr4hdmxxdn28dxn03a";
+  };
+
+	buildInputs = [ ocaml ocamlbuild findlib topkg ];
+
+  inherit (topkg) installPhase;
+
+  buildPhase = "${topkg.run} build --tests true";
+
+  doCheck = true;
+
+  checkPhase = "${topkg.run} test";
+
+  meta = {
+		description = "Heterogeneous value maps for OCaml";
+    homepage = "https://erratique.ch/software/hmap";
+		license = lib.licenses.isc;
+		maintainers = [ lib.maintainers.pmahoney ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 820d5af1151..2f093add604 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -271,6 +271,8 @@ let
 
     higlo = callPackage ../development/ocaml-modules/higlo { };
 
+    hmap = callPackage ../development/ocaml-modules/hmap { };
+
     imagelib = callPackage ../development/ocaml-modules/imagelib { };
 
     inotify = callPackage ../development/ocaml-modules/inotify { };