From 11e4fcf9413aff12dd4638bc098bfebeb936b2fb Mon Sep 17 00:00:00 2001
From: Florent Becker <Florent.Becker@ens-lyon.org>
Date: Thu, 16 Feb 2017 11:27:10 +0100
Subject: [PATCH] ocamlPackages.llpp: only allow with ocaml-4.04

---
 pkgs/top-level/ocaml-packages.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 615268e3778e..750fb7324a4b 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -695,7 +695,11 @@ let
 
     google-drive-ocamlfuse = callPackage ../applications/networking/google-drive-ocamlfuse { };
 
-    llpp = callPackage ../applications/misc/llpp { };
+    llpp =
+      if lib.versionOlder "4.04" ocaml.version
+      then callPackage ../applications/misc/llpp { }
+      else null;
+
 
     monotoneViz = callPackage ../applications/version-management/monotone-viz {
       inherit (pkgs.gnome2) libgnomecanvas glib;