From 4ba61cd136f5c7e18e5016bb20390946419fd178 Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Mon, 12 Mar 2018 21:23:34 +0100
Subject: [PATCH] libpar2: fix clang build

/cc ZHF #36454
---
 pkgs/development/libraries/libpar2/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/libpar2/default.nix b/pkgs/development/libraries/libpar2/default.nix
index 6d7606428f69..cf97744069b3 100644
--- a/pkgs/development/libraries/libpar2/default.nix
+++ b/pkgs/development/libraries/libpar2/default.nix
@@ -15,6 +15,8 @@ stdenv.mkDerivation rec {
 
   patches = [ ./libpar2-0.4-external-verification.patch ];
 
+  CXXFLAGS = stdenv.lib.optionalString stdenv.cc.isClang "-std=c++11";
+
   meta = {
     homepage = http://parchive.sourceforge.net/;
     license = stdenv.lib.licenses.gpl2Plus;