From f89504d06746f50d1b7915ad6b31fc58a3449541 Mon Sep 17 00:00:00 2001
From: Eric Litak <elitak@gmail.com>
Date: Tue, 7 Feb 2017 09:17:28 -0800
Subject: [PATCH] kmod: crossDrv should use native xz

---
 pkgs/os-specific/linux/kmod/default.nix | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pkgs/os-specific/linux/kmod/default.nix b/pkgs/os-specific/linux/kmod/default.nix
index 138130fa82e..5d0dca7b6be 100644
--- a/pkgs/os-specific/linux/kmod/default.nix
+++ b/pkgs/os-specific/linux/kmod/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, autoreconfHook, xz, zlib, pkgconfig, libxslt }:
+{ stdenv, buildPackages, lib, fetchurl, autoreconfHook, pkgconfig, libxslt, xz }:
 
 let
   systems = [ "/run/current-system/kernel-modules" "/run/booted-system/kernel-modules" "" ];
@@ -14,13 +14,14 @@ in stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ autoreconfHook pkgconfig libxslt ];
-  buildInputs = [ xz /* zlib */ ];
+  buildInputs = [ xz ];
+  # HACK until BUG issue #21191 is addressed
+  crossAttrs.preUnpack = ''PATH="${buildPackages.xz}/bin''${PATH:+:}$PATH"'';
 
   configureFlags = [
     "--sysconfdir=/etc"
     "--with-xz"
     "--with-modulesdirs=${modulesDirs}"
-    # "--with-zlib"
   ];
 
   patches = [ ./module-dir.patch ];