From 8deb0e104fda5f8b00b86b90ad13321aabb2b8ab Mon Sep 17 00:00:00 2001
From: Jörg Thalheim <joerg@thalheim.io>
Date: Sun, 23 Apr 2017 13:29:43 +0200
Subject: wireguard: do not fail on warning for older kernel

---
 pkgs/os-specific/linux/wireguard/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/os-specific/linux/wireguard/default.nix b/pkgs/os-specific/linux/wireguard/default.nix
index bf306364b8bf..fbff511db7c3 100644
--- a/pkgs/os-specific/linux/wireguard/default.nix
+++ b/pkgs/os-specific/linux/wireguard/default.nix
@@ -35,6 +35,8 @@ let
     KERNELDIR = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/build";
     INSTALL_MOD_PATH = "\${out}";
 
+    NIX_CFLAGS = ["-Wno-error=cpp"];
+
     buildPhase = "make module";
   };
 
-- 
cgit 1.4.1