From cedf31b04af86214ccd6abbaf13fc628b03de795 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 17 Mar 2018 17:31:38 +0100
Subject: [PATCH] haskell-brick: override to latest version to fix build with
 ghc-8.4.x

---
 pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
index 5a0f91615c1..24b7cd82fb8 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -704,4 +704,8 @@ self: super: {
       sha256 = "1sgfnyi2ma8vf91dw9ax9xbbjfcja1q5q9vcwa1rhh05jv8j036a";
     };
   };
+
+  # Older versions don't compile.
+  brick = self.brick_0_35;
+
 }