From a222473b063d5ea7fb585538767e17ae9cead8d9 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Fri, 16 Oct 2015 12:30:18 +0200
Subject: [PATCH] ocaml-ctypes: requires OCaml >= 4

---
 pkgs/development/ocaml-modules/ctypes/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/ocaml-modules/ctypes/default.nix b/pkgs/development/ocaml-modules/ctypes/default.nix
index 43c7ddbb290..e64310f6db8 100644
--- a/pkgs/development/ocaml-modules/ctypes/default.nix
+++ b/pkgs/development/ocaml-modules/ctypes/default.nix
@@ -4,6 +4,8 @@ buildOcaml rec {
   name = "ctypes";
   version = "0.4.1";
 
+  minimumSupportedOcamlVersion = "4";
+
   src = fetchurl {
     url = "https://github.com/ocamllabs/ocaml-ctypes/archive/${version}.tar.gz";
     sha256 = "74564e049de5d3c0e76ea284c225cb658ac1a2b483345be1efb9be4b3c1702f5";