From 28cd0f240a0fc73e579899adb9a6296adf3bd761 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Mon, 9 Oct 2017 07:09:09 +0000
Subject: [PATCH] ocamlPackages.ppx_ast: 0.9.0 -> 0.9.{1,2}

---
 .../ocaml-modules/janestreet/default.nix            | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/ocaml-modules/janestreet/default.nix b/pkgs/development/ocaml-modules/janestreet/default.nix
index 8fc1ddf9063a..4aabb976ee17 100644
--- a/pkgs/development/ocaml-modules/janestreet/default.nix
+++ b/pkgs/development/ocaml-modules/janestreet/default.nix
@@ -27,12 +27,19 @@ rec {
     meta.description = "OCaml compiler libraries repackaged";
   };
 
-  ppx_ast = janePackage {
+  ppx_ast = janePackage ({
     name = "ppx_ast";
-    hash = "0p9v4q3cjz8wwdrh6bjidani2npzvhdy8isnqwigqkl6n326dba9";
     propagatedBuildInputs = [ ocaml-compiler-libs ocaml-migrate-parsetree ];
     meta.description = "OCaml AST used by Jane Street ppx rewriters";
-  };
+  } // (if lib.versionAtLeast ocaml.version "4.06"
+    then {
+      version = "0.9.2";
+      hash = "1h4qf26rg23z21rrw83fakiavw9km7174p3830pg0gg4bwakvba0";
+    } else {
+      version = "0.9.1";
+      hash = "0a9rxwavy2748k0yd4db3hg1ypq7mpqnwq9si5a5qdiclgkhcggw";
+    }
+  ));
 
   ppx_traverse_builtins = janePackage {
     name = "ppx_traverse_builtins";