From 73982726b0620577c55d30824fbe51615f2cc390 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 10 Mar 2018 19:53:18 +0100
Subject: [PATCH] haskell-boxes: apply patch to fix build with GHC 8.4.1

---
 .../development/haskell-modules/configuration-ghc-8.4.x.nix | 6 ++++++
 1 file changed, 6 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 30d5384e018..dbb3c0ac600 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -797,4 +797,10 @@ self: super: {
   # https://github.com/pikajude/stylish-cabal/issues/6
   stylish-cabal = dontHaddock super.stylish-cabal;
 
+  # https://github.com/treeowl/boxes/issues/29
+  boxes = appendPatch super.boxes (pkgs.fetchpatch
+    { url = https://github.com/asr/boxes/commit/f03e16cb8677a9d85687c641fe27a87e6fd94d54.patch;
+      sha256 = "179vkn6jimiy64dwyam04x8v981l3pfrq3ig97600vnkns3v8i6a";
+    });
+
 }