From e63c1ea33e5871082d6400718e7dad2ba4e3a08a Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Fri, 12 Jun 2015 00:03:00 +0200
Subject: [PATCH] ocaml-ulex: fix build with OCaml-4.02 (depends on camlp4)

---
 pkgs/development/ocaml-modules/ulex/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/ocaml-modules/ulex/default.nix b/pkgs/development/ocaml-modules/ulex/default.nix
index 28950078f39..7c8acafe769 100644
--- a/pkgs/development/ocaml-modules/ulex/default.nix
+++ b/pkgs/development/ocaml-modules/ulex/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl, ocaml, findlib }:
+{ stdenv, fetchurl, ocaml, findlib, camlp4 }:
 
 let
   ocaml_version = (builtins.parseDrvName ocaml.name).version;
@@ -17,7 +17,8 @@ stdenv.mkDerivation {
 
   createFindlibDestdir = true;
 
-  buildInputs = [ocaml findlib];
+  buildInputs = [ ocaml findlib ];
+  propagatedBuildInputs = [ camlp4 ];
 
   buildFlags = "all all.opt";