From b08ced9110398606f5d9881bc2bc4fd2f2e24404 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 19 Sep 2019 13:45:42 +0200
Subject: [PATCH] haskell-cabal-plan: add override to fix the build

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

diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 6dab3cee350e..dde4092327b8 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1228,4 +1228,7 @@ self: super: {
     '';
   });
 
+  # The LTS-14.x version of optparse-applicative is too old.
+  cabal-plan = super.cabal-plan.override { optparse-applicative = self.optparse-applicative_0_15_1_0; };
+
 } // import ./configuration-tensorflow.nix {inherit pkgs haskellLib;} self super