From c0a541cba8cdc33d3420bfc17da022de5a2a07c6 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Tue, 13 Feb 2018 12:00:15 +0100
Subject: [PATCH] gnu: ghc-fgl: Fix build with newer QuickCheck.

* gnu/packages/haskell.scm (ghc-fgl)[arguments]: Allow building with newer
QuickCheck.
---
 gnu/packages/haskell.scm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index ea83dea397..85513b5491 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -3169,6 +3169,8 @@ variety of traversals.")
         (base32
          "0fbyb6jxy9whgrv6dgnkzz70cmy98arx3q2gnkhgl4a3d7idh36p"))))
     (build-system haskell-build-system)
+    (arguments
+     `(#:configure-flags (list "--allow-newer=QuickCheck")))
     (inputs
      `(("ghc-mtl" ,ghc-mtl)
        ("ghc-hspec" ,ghc-hspec)