From 01495f325506dbf233c9142429ad0dd6a2d0a0cc Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Thu, 24 Aug 2017 17:49:05 +0000
Subject: [PATCH] ocamlPackages.js_of_ocaml-compiler: init at 0.3.0

---
 .../ocaml/js_of_ocaml-compiler/default.nix    | 35 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 ++
 2 files changed, 37 insertions(+)
 create mode 100644 pkgs/development/tools/ocaml/js_of_ocaml-compiler/default.nix

diff --git a/pkgs/development/tools/ocaml/js_of_ocaml-compiler/default.nix b/pkgs/development/tools/ocaml/js_of_ocaml-compiler/default.nix
new file mode 100644
index 00000000000..11df26818c1
--- /dev/null
+++ b/pkgs/development/tools/ocaml/js_of_ocaml-compiler/default.nix
@@ -0,0 +1,35 @@
+{ stdenv, fetchFromGitHub, ocaml, findlib, jbuilder
+, cmdliner, cppo, yojson
+}:
+
+if !stdenv.lib.versionAtLeast ocaml.version "4.02"
+then throw "js_of_ocaml-compiler is not available for OCaml ${ocaml.version}"
+else
+
+stdenv.mkDerivation rec {
+	name = "js_of_ocaml-compiler-${version}";
+	version = "3.0.0";
+
+	src = fetchFromGitHub {
+		owner = "ocsigen";
+		repo = "js_of_ocaml";
+		rev = version;
+		sha256 = "17w1pqjk521jd4yp34miyif0cxjxchnw59xhj188qfl635ykb4k8";
+	};
+
+	buildInputs = [ ocaml findlib jbuilder cmdliner cppo ];
+
+	propagatedBuildInputs = [ yojson ];
+
+	buildPhase = "jbuilder build -p js_of_ocaml-compiler";
+
+	inherit (jbuilder) installPhase;
+
+	meta = {
+		description = "Compiler from OCaml bytecode to Javascript";
+		license = stdenv.lib.licenses.gpl2;
+		maintainers = [ stdenv.lib.maintainers.vbgl ];
+		inherit (src.meta) homepage;
+		inherit (ocaml.meta) platforms;
+	};
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 29f3ae51a0a..9462eb3d3da 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -272,6 +272,8 @@ let
 
     js_of_ocaml = callPackage ../development/tools/ocaml/js_of_ocaml { lwt = lwt2; };
 
+    js_of_ocaml-compiler = callPackage ../development/tools/ocaml/js_of_ocaml-compiler {};
+
     jsonm = callPackage ../development/ocaml-modules/jsonm { };
 
     lablgl = callPackage ../development/ocaml-modules/lablgl { };