From b2c43483b0a4d2bbd1e4167c5221a3e05dfd004e Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Tue, 24 Sep 2019 17:55:06 +0200
Subject: [PATCH] haskell-hpack: patch the build to make it succeed with
 ghc-8.8.1

---
 pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
index a233185cf4b..c3d5c7a1510 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
@@ -166,7 +166,10 @@ self: super: {
   aeson-diff = doJailbreak super.aeson-diff;
 
   # https://github.com/sol/hpack/issues/371
-  hpack = markBrokenVersion "0.32.0" super.hpack;
+  hpack = appendPatch super.hpack (pkgs.fetchpatch {
+    url = "https://gitlab.haskell.org/ghc/head.hackage/raw/master/patches/hpack-0.32.0.patch";
+    sha256 = "11ccl9f7vwbf5cpzknlyvrwgkzpajk4vq9jk9yb5f9la9ggwb244";
+  });
 
   # Upstream ships a broken Setup.hs file.
   csv = overrideCabal super.csv (drv: { prePatch = "rm Setup.hs"; });