From e914f157288dea280431e80e99e3bf7892601187 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benno=20F=C3=BCnfst=C3=BCck?= <benno.fuenfstueck@gmail.com>
Date: Thu, 1 May 2014 14:50:01 +0200
Subject: [PATCH] haskell-cabal-bounds: avoid rebuild of Cabal

---
 pkgs/top-level/haskell-packages.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 3eec6e54b098..dc39671fc765 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -3067,7 +3067,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
   cabalDelete = callPackage ../development/tools/haskell/cabal-delete {};
 
   cabalBounds = callPackage ../development/tools/haskell/cabal-bounds {
-    Cabal = self.Cabal_1_18_1_3;
+    Cabal = if pkgs.stdenv.lib.versionAtLeast "7.8" ghc.version
+              then null
+              else self.Cabal_1_18_1_3;
   };
 
   cabalDev = callPackage ../development/tools/haskell/cabal-dev {};