From 89223a9380da7a0a72957ee2b17c6632a8ed1ab5 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 27 Sep 2018 17:02:40 +0200
Subject: [PATCH] haskell-control-monad-free: mark broken when building 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 9f4cc057c707..8b3800964663 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
@@ -46,6 +46,7 @@ self: super: {
 
   # LTS-12.x versions do not compile.
   contravariant = self.contravariant_1_5;
+  control-monad-free = markBrokenVersion "0.6.1" super.control-monad-free;
   doctest = self.doctest_0_16_0_1;
   doctest_0_16_0_1 = dontCheck super.doctest_0_16_0_1;
   Glob = self.Glob_0_9_3;