From 8fdcf556a14210e4d3dd0cecf080238ed9d0d932 Mon Sep 17 00:00:00 2001
From: Michael Alan Dorman <mdorman@ironicdesign.com>
Date: Fri, 27 May 2016 07:51:17 -0400
Subject: [PATCH] Don't use incompatible haddock-api.

---
 pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
index 7e82d94e3485..c497405aa20f 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -181,6 +181,9 @@ self: super: {
   # https://github.com/haskell/haddock/issues/427
   haddock = dontCheck super.haddock;
 
+  # haddock-api >= 2.17 is GHC 8.0 only
+  haddock-api = self.haddock-api_2_16_1;
+
   # The tests in vty-ui do not build, but vty-ui itself builds.
   vty-ui = enableCabalFlag super.vty-ui "no-tests";