From ecaef62bd98cd99f495c83a0c039766fc7bed84a Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Tue, 25 Jul 2017 12:01:38 +0200
Subject: [PATCH] cdrdao: Fix build on gcc 6

http://hydra.nixos.org/build/56889707
---
 pkgs/tools/cd-dvd/cdrdao/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/tools/cd-dvd/cdrdao/default.nix b/pkgs/tools/cd-dvd/cdrdao/default.nix
index caf37ccbe1d..95dd58a59b4 100644
--- a/pkgs/tools/cd-dvd/cdrdao/default.nix
+++ b/pkgs/tools/cd-dvd/cdrdao/default.nix
@@ -24,6 +24,9 @@ stdenv.mkDerivation {
     sed -i 's,linux/../,,g' dao/sg_err.h
   '';
 
+  # Needed on gcc >= 6.
+  NIX_CFLAGS_COMPILE = "-Wno-narrowing";
+
   meta = {
     description = "A tool for recording audio or data CD-Rs in disk-at-once (DAO) mode";
     homepage = http://cdrdao.sourceforge.net/;