From 6d6bd65b62612848a35045c1ffef9b9fa17683d8 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Sat, 11 Apr 2015 17:20:06 -0400
Subject: [PATCH] monoid-extras: Build on 7.10

---
 .../development/haskell-modules/configuration-ghc-7.10.x.nix | 5 +++++
 1 file changed, 5 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 789c40d5ca86..70cd4acd1646 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -277,4 +277,9 @@ self: super: {
     buildDepends = [ primitive ];
     license = pkgs.stdenv.lib.licenses.bsd3;
   }) {};
+
+  # diagrams/monoid-extras#19
+  monoid-extras = overrideCabal super.monoid-extras (drv: {
+    prePatch = "sed -i 's|4\.8|4.9|' monoid-extras.cabal";
+  });
 }