From 9c6be76276f0f318ccdd48c6f551a54977e5a4a9 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Wed, 9 May 2018 16:38:47 +0000
Subject: [PATCH] ocamlPackages.gapi_ocaml: disable for OCaml < 4.02

---
 pkgs/development/ocaml-modules/gapi-ocaml/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/ocaml-modules/gapi-ocaml/default.nix b/pkgs/development/ocaml-modules/gapi-ocaml/default.nix
index b4e06d3c999..a7c32a069fc 100644
--- a/pkgs/development/ocaml-modules/gapi-ocaml/default.nix
+++ b/pkgs/development/ocaml-modules/gapi-ocaml/default.nix
@@ -1,5 +1,9 @@
 { stdenv, fetchFromGitHub, ocaml, findlib, jbuilder, opam, ocurl, cryptokit, ocaml_extlib, yojson, ocamlnet, xmlm }:
 
+if !stdenv.lib.versionAtLeast ocaml.version "4.02"
+then throw "gapi-ocaml is not available for OCaml ${ocaml.version}"
+else
+
 stdenv.mkDerivation rec {
   name = "gapi-ocaml-${version}";
   version = "0.3.6";