From 13ec57e381ed6cc50296bad28eae219c9b9955c3 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 18:11:11 +0100
Subject: [PATCH] yap: -fpermissive to fix build with gcc7

---
 pkgs/development/compilers/yap/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/compilers/yap/default.nix b/pkgs/development/compilers/yap/default.nix
index 8e37dc76441b..d93da8cb9965 100644
--- a/pkgs/development/compilers/yap/default.nix
+++ b/pkgs/development/compilers/yap/default.nix
@@ -13,6 +13,8 @@ stdenv.mkDerivation rec {
 
   configureFlags = "--enable-tabling=yes";
 
+  NIX_CFLAGS_COMPILE = [ "-fpermissive" ];
+
   meta = {
     homepage = http://www.dcc.fc.up.pt/~vsc/Yap/;
     description = "A ISO-compatible high-performance Prolog compiler";