From 82b74ae42547a5ade39f64f102ab2be941cfa9a8 Mon Sep 17 00:00:00 2001
From: Joel Taylor <me@joelt.io>
Date: Fri, 15 May 2015 21:21:52 -0700
Subject: [PATCH] Conditionally link libnatspec with darwin.libiconv

This fixes zip-archive, which depended on darwin.libiconv via GHC and regular libiconv via
libnatspec.
---
 pkgs/top-level/all-packages.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 24c28c46f35..df9de2bc0ee 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6699,7 +6699,11 @@ let
   libmsgpack = callPackage ../development/libraries/libmsgpack { };
   libmsgpack_0_5 = callPackage ../development/libraries/libmsgpack/0.5.nix { };
 
-  libnatspec = callPackage ../development/libraries/libnatspec { };
+  libnatspec = callPackage ../development/libraries/libnatspec (
+    stdenv.lib.optionalAttrs stdenv.isDarwin {
+      inherit (darwin) libiconv;
+    }
+  );
 
   libndp = callPackage ../development/libraries/libndp { };