From a9111840faafdfacc946298efe3b9558f42d4688 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Wed, 26 Jul 2017 09:26:18 +0200
Subject: [PATCH] haskell: provide the name 'ghcjs-prim' (null) to fix
 evaluation errors

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

diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index eb3f25e6253..eaa3576c81e 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -19,6 +19,7 @@ self: super: {
   # GHCJS package set. We provide a dummy version here to fix potential
   # evaluation errors.
   ghcjs-base = null;
+  ghcjs-prim = null;
 
   # Some packages need a non-core version of Cabal.
   cabal-install = super.cabal-install.overrideScope (self: super: { Cabal = self.Cabal_1_24_2_0; });