From c63e5c13d271dbdc534d477c494a08463d8f53f9 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Mon, 23 Jul 2018 17:23:07 +0000
Subject: ocamlPackages.piqi-ocaml: fix build with OCaml 4.06

---
 pkgs/development/ocaml-modules/piqi-ocaml/default.nix | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/ocaml-modules/piqi-ocaml/default.nix b/pkgs/development/ocaml-modules/piqi-ocaml/default.nix
index 38b56ac7beb1..bbe38ac89942 100644
--- a/pkgs/development/ocaml-modules/piqi-ocaml/default.nix
+++ b/pkgs/development/ocaml-modules/piqi-ocaml/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, ocaml, findlib, piqi, camlp4 }:
+{ stdenv, fetchurl, fetchpatch, ocaml, findlib, piqi, camlp4 }:
 
 stdenv.mkDerivation rec {
   version = "0.7.5";
@@ -9,6 +9,11 @@ stdenv.mkDerivation rec {
     sha256 = "0ngz6y8i98i5v2ma8nk6mc83pdsmf2z0ks7m3xi6clfg3zqbddrv";
   };
 
+  patches = [ (fetchpatch {
+    url = https://github.com/alavrik/piqi-ocaml/commit/336e8fdb84e77f4105e9bbb5ab545b8729101308.patch;
+    sha256 = "071s4xjyr6xx95v6az2lbl2igc87n7z5jqnnbhfq2pidrxakd0la";
+  })];
+
   buildInputs = [ ocaml findlib piqi camlp4 ];
 
   createFindlibDestdir = true;
-- 
cgit 1.4.1