From aeacdd9630aebde2884cc5b028c1f99f967804c2 Mon Sep 17 00:00:00 2001
From: Stephen Diehl <stephen.m.diehl@gmail.com>
Date: Fri, 28 Oct 2016 16:41:28 +0100
Subject: [PATCH] include hashable

---
 protolude.cabal  | 1 +
 src/Protolude.hs | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/protolude.cabal b/protolude.cabal
index ac10baa85..a35fe7487 100644
--- a/protolude.cabal
+++ b/protolude.cabal
@@ -68,6 +68,7 @@ library
     async            >= 2.1  && <2.2,
     deepseq          >= 1.3  && <1.5,
     containers       >= 0.5  && <0.6,
+    hashable         >= 1.2  && <1.3,
     mtl              >= 2.1  && <2.3,
     transformers     >= 0.4  && <0.6,
     text             >= 1.2  && <1.3,
diff --git a/src/Protolude.hs b/src/Protolude.hs
index fd74c5f53..18729c197 100644
--- a/src/Protolude.hs
+++ b/src/Protolude.hs
@@ -155,6 +155,14 @@ import Data.List as X (
   , zip
   )
 
+-- Hashing
+import Data.Hashable as X (
+    Hashable
+  , hash
+  , hashWithSalt
+  , hashUsing
+  )
+
 import Data.Map as X (Map)
 import Data.Set as X (Set)
 import Data.Sequence as X (Seq)