From e736dfe6bfb2fdee310447aa53762cc420c44a00 Mon Sep 17 00:00:00 2001
From: Erik de Castro Lopo <erikd@mega-nerd.com>
Date: Sat, 3 Sep 2016 20:50:25 +1000
Subject: [PATCH] hspec-expectations.cabal: Disable redundant-constraint
 warnings

GHC 8.0.1 added a new `redundant-constraints` warning that is part of
`-Wall` by default. However, this warning is triggered on code that
needs the constraints (eg AMP with ghc < 7.10) for earlier compilers.
---
 hspec-expectations.cabal | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hspec-expectations.cabal b/hspec-expectations.cabal
index 4bab9bf..fa96794 100644
--- a/hspec-expectations.cabal
+++ b/hspec-expectations.cabal
@@ -25,6 +25,8 @@ library
   hs-source-dirs:
       src
   ghc-options: -Wall
+  if impl(ghc >= 8.0)
+    ghc-options: -fno-warn-redundant-constraints
   build-depends:
       base == 4.*
     , HUnit