From bf251489024ee59903b8f2f99523e5c2e518b522 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Sun, 18 Feb 2018 14:12:43 +0100
Subject: [PATCH] ntopng: fixup build with gcc7

... but the new gcc pointed out some real bug.  I suppose update
would be best: https://github.com/ntop/ntopng/releases
---
 pkgs/tools/networking/ntopng/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/tools/networking/ntopng/default.nix b/pkgs/tools/networking/ntopng/default.nix
index d1a90d9d1aad..b307a8f6f131 100644
--- a/pkgs/tools/networking/ntopng/default.nix
+++ b/pkgs/tools/networking/ntopng/default.nix
@@ -53,6 +53,8 @@ stdenv.mkDerivation rec {
     sed 's|LIBS += -lstdc++.6||' -i Makefile
   '';
 
+  NIX_CFLAGS_COMPILE = [ "-fpermissive" ];
+
   meta = with stdenv.lib; {
     description = "High-speed web-based traffic analysis and flow collection tool";
     homepage = http://www.ntop.org/products/ntop/;