From 5c3be05e90dcf70720c8d922149de5dd87d5ef50 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 22 Mar 2014 10:44:35 +0100
Subject: [PATCH] ghc-HEAD: fix build on recent versions of Darwin

---
 pkgs/development/compilers/ghc/head.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/compilers/ghc/head.nix b/pkgs/development/compilers/ghc/head.nix
index 7f5ec0985b9a..cc220eb7b1c2 100644
--- a/pkgs/development/compilers/ghc/head.nix
+++ b/pkgs/development/compilers/ghc/head.nix
@@ -22,6 +22,7 @@ stdenv.mkDerivation rec {
   preConfigure = ''
     echo "${buildMK}" > mk/build.mk
     sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
+  '' + stdenv.lib.optionalString (!stdenv.isDarwin) ''
     export NIX_LDFLAGS="$NIX_LDFLAGS -rpath $out/lib/ghc-${version}"
   '';