From d035fc1e76eb93487ef69a49bf190f2922d4d803 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Tue, 20 Feb 2018 18:21:47 +0100
Subject: [PATCH] haskell-parsec: fix build with GHC 7.10.x

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

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 286b382e1973..c63ec7b70f78 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -197,6 +197,7 @@ self: super: {
   mono-traversable = addBuildDepend super.mono-traversable self.semigroups;
   natural-transformation = addBuildDepend super.natural-transformation self.semigroups;
   optparse-applicative = addBuildDepends super.optparse-applicative [self.semigroups self.fail];
+  parsec = addBuildDepends super.parsec [self.fail self.semigroups];
   QuickCheck = addBuildDepend super.QuickCheck self.semigroups;
   reflection = addBuildDepend super.reflection self.semigroups;
   semigroups = addBuildDepends (dontCheck super.semigroups) (with self; [hashable tagged text unordered-containers]);