From ab4b23c35cc52f33d0f692bfda00e753df4c04c4 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Tue, 7 May 2019 09:31:57 +0000
Subject: [PATCH] ocamlPackages.elpi: 1.1.0 -> 1.2.0

---
 pkgs/development/ocaml-modules/elpi/default.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/ocaml-modules/elpi/default.nix b/pkgs/development/ocaml-modules/elpi/default.nix
index fd42cbe20c7..c3e5a272f74 100644
--- a/pkgs/development/ocaml-modules/elpi/default.nix
+++ b/pkgs/development/ocaml-modules/elpi/default.nix
@@ -2,14 +2,18 @@
 , ppx_tools_versioned, ppx_deriving, re
 }:
 
+if !stdenv.lib.versionAtLeast ocaml.version "4.03"
+then throw "elpi is not available for OCaml ${ocaml.version}"
+else
+
 stdenv.mkDerivation rec {
   name = "ocaml${ocaml.version}-elpi-${version}";
-  version = "1.1.0";
+  version = "1.2.0";
   src = fetchFromGitHub {
     owner = "LPCIC";
     repo = "elpi";
     rev = "v${version}";
-    sha256 = "1fd4mqggdcnbhqwrg8r0ikb1j2lv0fc9hv9xfbyjzbzxbjggf5zc";
+    sha256 = "1n4jpidx0vk4y66bhd704ajn8n6f1fd5wsi1shj6wijfmjl14h7s";
   };
 
   buildInputs = [ ocaml findlib ppx_tools_versioned ];