From a99d7b1071d9ab31250311065052e3352fb94f14 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Sun, 17 Jul 2016 17:26:22 +0200
Subject: [PATCH] ocaml-topkg: init at 0.7.8

---
 .../ocaml-modules/topkg/default.nix           | 33 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  2 ++
 2 files changed, 35 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/topkg/default.nix

diff --git a/pkgs/development/ocaml-modules/topkg/default.nix b/pkgs/development/ocaml-modules/topkg/default.nix
new file mode 100644
index 00000000000..4fd6589cfb5
--- /dev/null
+++ b/pkgs/development/ocaml-modules/topkg/default.nix
@@ -0,0 +1,33 @@
+{ stdenv, fetchurl, ocaml, findlib, result, opam }:
+
+let ocaml-version = stdenv.lib.getVersion ocaml; in
+
+stdenv.mkDerivation rec {
+  name = "ocaml${ocaml-version}-topkg-${version}";
+  version = "0.7.8";
+
+  src = fetchurl {
+    url = "http://erratique.ch/software/topkg/releases/topkg-${version}.tbz";
+    sha256 = "029lbmabczpmcgkj53mc20vmpcn3f7rf7xms4xf0nywswfzsash6";
+  };
+
+  nativeBuildInputs = [ opam ];
+  buildInputs = [ ocaml findlib ];
+  propagatedBuildInputs = [ result ];
+
+  unpackCmd = "tar xjf ${src}";
+  buildPhase = "ocaml -I ${findlib}/lib/ocaml/${ocaml-version}/site-lib/ pkg/pkg.ml build";
+  createFindlibDestdir = true;
+  installPhase = ''
+    opam-installer --script --prefix=$out topkg.install | sh
+    mv $out/lib/topkg $out/lib/ocaml/${ocaml-version}/site-lib/
+  '';
+
+  meta = {
+    homepage = http://erratique.ch/software/topkg;
+    license = stdenv.lib.licenses.isc;
+    maintainers = [ stdenv.lib.maintainers.vbgl ];
+    description = "A packager for distributing OCaml software";
+    inherit (ocaml.meta) platforms;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8421932c393..b81bc262193 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5393,6 +5393,8 @@ in
 
     stringext = callPackage ../development/ocaml-modules/stringext { };
 
+    topkg = callPackage ../development/ocaml-modules/topkg { };
+
     tsdl = callPackage ../development/ocaml-modules/tsdl { };
 
     twt = callPackage ../development/ocaml-modules/twt { };