From 34c59894a6a08518e82c4810f5447a9e8e138b39 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Thu, 17 Sep 2015 20:55:57 +0200
Subject: [PATCH] ocaml-mode: fix build for OCaml >= 4.02

---
 pkgs/applications/editors/emacs-modes/ocaml/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/editors/emacs-modes/ocaml/default.nix b/pkgs/applications/editors/emacs-modes/ocaml/default.nix
index 9e4496ff1a48..7ed6355f9815 100644
--- a/pkgs/applications/editors/emacs-modes/ocaml/default.nix
+++ b/pkgs/applications/editors/emacs-modes/ocaml/default.nix
@@ -11,7 +11,8 @@ in stdenv.mkDerivation {
   # a quick configure to get the Makefile generated. Since
   # we do not build the ocaml itself, we don't really
   # need it to support any features.
-  configureFlags = [ "-no-tk" "-no-curses" "-no-pthread" ];
+  configureFlags = (with stdenv.lib; optional (!(versionAtLeast version "4.02")) "-no-tk") ++
+    [ "-no-curses" "-no-pthread" ];
 
   buildInputs = [ emacs ];
   dontBuild = true;