From dacbca273007fad83a22fc51b33b2350ed7094c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Tue, 31 Jan 2017 12:53:24 +0100
Subject: [PATCH] knot-dns: yet another attempt to fix build on Darwin

---
 pkgs/servers/dns/knot-dns/default.nix | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/pkgs/servers/dns/knot-dns/default.nix b/pkgs/servers/dns/knot-dns/default.nix
index 834d9a09b5bb..c7b2032a5790 100644
--- a/pkgs/servers/dns/knot-dns/default.nix
+++ b/pkgs/servers/dns/knot-dns/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, pkgconfig, gnutls, jansson, liburcu, lmdb, libcap_ng, libidn
-, systemd, nettle, libedit, zlib, libiconv
+, systemd, nettle, libedit, zlib, libiconv, fetchpatch
 }:
 
 # Note: ATM only the libraries have been tested in nixpkgs.
@@ -12,6 +12,13 @@ stdenv.mkDerivation rec {
     sha256 = "0y9nhp9lfmxv4iy1xg7l4lfxv4168qhag26wwg0dbi0zjpkd790b";
   };
 
+  patches = stdenv.lib.optional stdenv.isDarwin
+      (fetchpatch {
+        name = "before-sierra.diff";
+        url = "https://gitlab.labs.nic.cz/labs/knot/merge_requests/664.diff";
+        sha256 = "0g4gm2m3pi0lfpkp53xayf6jq6yn3ifidh40maiy1a46dfadvw6w";
+      });
+
   outputs = [ "bin" "out" "dev" ];
 
   nativeBuildInputs = [ pkgconfig ];
@@ -27,7 +34,7 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
-  CFLAGS = [ "-DNDEBUG" ];
+  CFLAGS = [ "-O2" "-DNDEBUG" ];
 
   #doCheck = true; problems in combination with dynamic linking