From b516b13441386bf562a8ae8b010bd8af65a8733e Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Wed, 20 Feb 2013 11:49:37 +0100
Subject: [PATCH] haskell-show: this package needs smallcheck version < 1

---
 pkgs/development/libraries/haskell/show/default.nix | 3 +++
 pkgs/top-level/haskell-packages.nix                 | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/haskell/show/default.nix b/pkgs/development/libraries/haskell/show/default.nix
index 7fe0013d0d29..70e629e1ebf2 100644
--- a/pkgs/development/libraries/haskell/show/default.nix
+++ b/pkgs/development/libraries/haskell/show/default.nix
@@ -5,6 +5,9 @@ cabal.mkDerivation (self: {
   version = "0.4.1.2";
   sha256 = "1qaphxjaxng7d0kcn3vvxbvqljzzs1hvmsrdsm3pbi19qlsavd5w";
   buildDepends = [ QuickCheck random smallcheck syb ];
+  patchPhase = ''
+    sed -i -e 's|smallcheck>=0.4|smallcheck >=0.4 \&\& <= 1|' show.cabal
+  '';
   meta = {
     description = "'Show' instances for Lambdabot";
     license = "GPL";
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index efb302648d29..5b9a793eb8b0 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1619,7 +1619,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   Shellac = callPackage ../development/libraries/haskell/Shellac/Shellac.nix {};
 
-  show = callPackage ../development/libraries/haskell/show {};
+  show = callPackage ../development/libraries/haskell/show {
+    smallcheck = self.smallcheck_0_6_2;
+  };
 
   SMTPClient = callPackage ../development/libraries/haskell/SMTPClient {};