From 59cf968fb3547b7071c446a4fc85b7737eaa5f7b Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sun, 17 May 2015 13:30:38 +0200
Subject: [PATCH] haskell-blaze-builder: fix build with GHC 7.6.3

---
 pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
index 8be816b0c9b..0970108eef7 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
@@ -85,4 +85,7 @@ self: super: {
     patchPhase = "sed -i -e 's|base ==4.8.*,|base,|' sandi.cabal"; }
   );
 
+  # blaze-builder requires an additional build input on older compilers.
+  blaze-builder = addBuildDepend super.blaze-builder super.bytestring-builder;
+
 }