From a11b0bc5151b219629b270391c104ca168cf7d09 Mon Sep 17 00:00:00 2001
From: Joachim Fasting <joachifm@fastmail.fm>
Date: Sun, 15 May 2016 19:39:18 +0200
Subject: [PATCH] efivar: fix build against linux 4.4 headers

---
 pkgs/tools/system/efivar/default.nix | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/system/efivar/default.nix b/pkgs/tools/system/efivar/default.nix
index b4da2044f694..29ce0b1d8972 100644
--- a/pkgs/tools/system/efivar/default.nix
+++ b/pkgs/tools/system/efivar/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, pkgconfig, popt }:
+{ stdenv, fetchurl, fetchFromGitHub, pkgconfig, popt }:
 
 stdenv.mkDerivation rec {
   name = "efivar-${version}";
@@ -11,6 +11,14 @@ stdenv.mkDerivation rec {
     sha256 = "1fdqi053v335pjwj1i3yi9f1kasdzg3agfcp36bxsbhqjp4imlid";
   };
 
+  patches = [
+    # fix problem with linux 4.4 headers https://github.com/rhinstaller/efivar/issues/37
+    (fetchurl {
+      url = https://gitweb.gentoo.org/repo/gentoo.git/plain/sys-libs/efivar/files/0.21-nvme_ioctl.h.patch;
+      sha256 = "1rjjpd4s1xdsnhq974j5wnwav8pfvd0jbvhk8a9wc2w029fvj7zp";
+    })
+  ];
+
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ popt ];