From fa9c81f69468098e0dd0ca79ea4d2ef74ec6bc0c Mon Sep 17 00:00:00 2001
From: Jude Taylor <me@jude.bio>
Date: Thu, 11 Jun 2015 17:58:26 -0700
Subject: pure darwin stdenv

---
 pkgs/development/libraries/zlib/default.nix | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'pkgs/development/libraries/zlib')

diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index 419a2584ca8..93474d14344 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -13,6 +13,13 @@ stdenv.mkDerivation (rec {
     sha256 = "039agw5rqvqny92cpkrfn243x2gd4xn13hs3xi6isk55d2vqqr9n";
   };
 
+  postPatch = stdenv.lib.optionalString stdenv.isDarwin ''
+    substituteInPlace configure \
+      --replace '/usr/bin/libtool' 'ar' \
+      --replace 'AR="libtool"' 'AR="ar"' \
+      --replace 'ARFLAGS="-o"' 'ARFLAGS="-r"'
+  '';
+
   configureFlags = if static then "" else "--shared";
 
   preConfigure = ''
-- 
cgit 1.4.1