From ad489cec10a9edc377fa0ca0651846f1beb7ac2f Mon Sep 17 00:00:00 2001
From: Greg Hale <imalsogreg@gmail.com>
Date: Mon, 5 Dec 2016 01:36:42 +0000
Subject: [PATCH] Add pandoc dependency to heist to restore working heist tests

---
 pkgs/development/haskell-modules/configuration-common.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index af433eb7382..24299c9418d 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -186,6 +186,11 @@ self: super: {
     }))
     else super.hakyll;
 
+  # Heist's test suite requires system pandoc
+  heist = overrideCabal super.heist (drv: {
+    testToolDepends = [pkgs.pandoc];
+  });
+
   # cabal2nix likes to generate dependencies on hinotify when hfsevents is really required
   # on darwin: https://github.com/NixOS/cabal2nix/issues/146.
   hinotify = if pkgs.stdenv.isDarwin then self.hfsevents else super.hinotify;