From 513d648f40a178315b830fffd34903e542a5f103 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sun, 5 Jun 2016 17:47:35 +0200
Subject: [PATCH] configuration-common.nix: drop obsolete overrides

---
 pkgs/development/haskell-modules/configuration-common.nix | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 9f1d1b56d3c..08df6545550 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -5,10 +5,8 @@ with import ./lib.nix { inherit pkgs; };
 self: super: {
 
   # Some packages need a non-core version of Cabal.
-  Cabal_1_18_1_7 = dontCheck super.Cabal_1_18_1_7;
-  Cabal_1_20_0_4 = dontCheck super.Cabal_1_20_0_4;
-  Cabal_1_22_4_0 = (dontCheck super.Cabal_1_22_4_0).overrideScope (self: super: { binary = self.binary_0_7_6_1; });
-  cabal-install = (dontCheck super.cabal-install).overrideScope (self: super: { Cabal = self.Cabal_1_24_0_0; });
+  Cabal_1_22_4_0 = super.Cabal_1_22_4_0.overrideScope (self: super: { binary = self.binary_0_7_6_1; });
+  cabal-install = super.cabal-install.overrideScope (self: super: { Cabal = self.Cabal_1_24_0_0; });
   cabal-install_1_18_1_0 = (dontCheck super.cabal-install_1_18_1_0).overrideScope (self: super: { Cabal = self.Cabal_1_18_1_7; });
 
   # Link statically to avoid runtime dependency on GHC.