From f639d6bb0906046d9758e7b4a3eabb7c99958d64 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 10 Jan 2015 23:38:16 +0100
Subject: [PATCH] darcs: switch to haskell-ng build

---
 pkgs/top-level/all-packages.nix | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index bafa89a87a2..b5f6de26369 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2516,7 +2516,7 @@ let
   };
 
   ssss = callPackage ../tools/security/ssss { };
- 
+
   stress = callPackage ../tools/system/stress { };
 
   storeBackup = callPackage ../tools/backup/store-backup { };
@@ -9460,15 +9460,11 @@ let
 
   d4x = callPackage ../applications/misc/d4x { };
 
-  darcs = with haskellPackages_ghc784; callPackage ../applications/version-management/darcs {
-    cabal = cabal.override {
-      extension = self : super : {
-        enableSharedExecutables = false;
-        isLibrary = false;
-        configureFlags = "-f-library " + super.configureFlags or "";
-      };
-    };
-  };
+  darcs = haskell-ng.lib.overrideCabal haskellngPackages.darcs (drv: {
+    configureFlags = (stdenv.lib.remove "-flibrary" drv.configureFlags or []) ++ ["-f-library"];
+    enableSharedExecutables = false;
+    isLibrary = false;
+  });
 
   darktable = callPackage ../applications/graphics/darktable {
     inherit (gnome) GConf libglade;