From 379eb750149a0b014f5aaae3dccaa01835f8bd2c Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 10 Mar 2018 20:03:28 +0100
Subject: [PATCH] haskell-setlocale: jailbreak to fix ghc 8.4.1 build

---
 pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
index dbb3c0ac600..5aa62342b77 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -803,4 +803,7 @@ self: super: {
       sha256 = "179vkn6jimiy64dwyam04x8v981l3pfrq3ig97600vnkns3v8i6a";
     });
 
+  # https://bitbucket.org/IchUndNichtDu/haskell-setlocale/issues/1/please-allow-base-412-from-ghc-841
+  setlocale = doJailbreak super.setlocale;
+
 }