From 5e0c468737111064e0449d4507c3754afb90face Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josef=20Kemetm=C3=BCller?= <josef.kemetmueller@aon.at>
Date: Sun, 9 Sep 2018 22:40:49 +0200
Subject: [PATCH] pythonPackages.fiona: Fix darwin build (#46435)

---
 pkgs/development/python-modules/fiona/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/python-modules/fiona/default.nix b/pkgs/development/python-modules/fiona/default.nix
index e6d347b440d..0e6ab256d0d 100644
--- a/pkgs/development/python-modules/fiona/default.nix
+++ b/pkgs/development/python-modules/fiona/default.nix
@@ -12,6 +12,8 @@ buildPythonPackage rec {
     sha256 = "a156129f0904cb7eb24aa0745b6075da54f2c31db168ed3bcac8a4bd716d77b2";
   };
 
+  CXXFLAGS = stdenv.lib.optionalString stdenv.cc.isClang "-std=c++11";
+
   buildInputs = [
     gdal
   ];