From d31b3a9e6dad213fe60b0fe1ede1ca4b87e055f5 Mon Sep 17 00:00:00 2001
From: Robin Gloster <mail@glob.in>
Date: Sat, 21 Jan 2017 14:43:22 +0100
Subject: [PATCH] freeimage: fix build with gcc6

---
 pkgs/development/libraries/freeimage/default.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/freeimage/default.nix b/pkgs/development/libraries/freeimage/default.nix
index 42105c7022c2..6ee7670fc296 100644
--- a/pkgs/development/libraries/freeimage/default.nix
+++ b/pkgs/development/libraries/freeimage/default.nix
@@ -1,11 +1,15 @@
-{stdenv, fetchurl, unzip, darwin}:
+{ stdenv, fetchurl, unzip, darwin }:
+
 stdenv.mkDerivation {
   name = "freeimage-3.17.0";
+
   src = fetchurl {
     url = mirror://sourceforge/freeimage/FreeImage3170.zip;
     sha256 = "12bz57asdcfsz3zr9i9nska0fb6h3z2aizy412qjqkixkginbz7v";
   };
+
   buildInputs = [ unzip ] ++ stdenv.lib.optional stdenv.isDarwin darwin.cctools;
+
   prePatch = if stdenv.isDarwin
              then ''
     sed -e 's/gcc-4.0/clang/g' \
@@ -38,6 +42,8 @@ stdenv.mkDerivation {
   preInstall = "mkdir -p $out/include $out/lib";
   postInstall = stdenv.lib.optionalString (!stdenv.isDarwin) "make -f Makefile.fip install";
 
+  NIX_CFLAGS_COMPILE = "-Wno-narrowing";
+
   meta = {
     description = "Open Source library for accessing popular graphics image file formats";
     homepage = http://freeimage.sourceforge.net/;