From 44f68ab3efc319d774830a9d4680370bc3697633 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 24 Sep 2018 21:28:30 +0200
Subject: [PATCH] haskell-doctest: fix build with ghc-8.6.x

---
 pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
index bbfee4b426a..a60de8f95f8 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
@@ -47,6 +47,7 @@ self: super: {
   # LTS-12.x versions do not compile.
   contravariant = self.contravariant_1_5;
   doctest = self.doctest_0_16_0_1;
+  doctest_0_16_0_1 = dontCheck super.doctest_0_16_0_1;
   hspec = self.hspec_2_5_7;
   hspec-core = self.hspec-core_2_5_7;
   hspec-core_2_5_7 = super.hspec-core_2_5_7.overrideScope (self: super: { QuickCheck = self.QuickCheck_2_12_4; });