From 16958ffaf9e42bd6e06747c07c917bc2cc0abeb6 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 12 May 2014 14:04:31 +0200
Subject: [PATCH] haskell-bson: fix build with ghc < 7.8

---
 pkgs/top-level/haskell-defaults.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index f40ce2bf6df9..248d3b511bb3 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -21,6 +21,7 @@
   };
 
   ghc763Prefs = self : super : ghc782Prefs self super // {
+    bson = super.bson.override { dataBinaryIeee754 = self.dataBinaryIeee754.override { binary = self.binary_0_7_0_1; }; };
     criterion = super.criterion.override {
       statistics = self.statistics.override {
         vectorBinaryInstances = self.vectorBinaryInstances.override { binary = self.binary_0_7_0_1; };