From dd7af301b45e8d59127eba75dfbd0979ef3499f1 Mon Sep 17 00:00:00 2001
From: Chen Yu <chenyyuio@gmail.com>
Date: Sat, 16 Jun 2018 02:00:33 +0800
Subject: [PATCH] Fix the problem of it not compling in macOS

---
 pkgs/development/python-modules/kiwisolver/default.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/python-modules/kiwisolver/default.nix b/pkgs/development/python-modules/kiwisolver/default.nix
index 6ee732a06cb1..c0c3b09e7b4b 100644
--- a/pkgs/development/python-modules/kiwisolver/default.nix
+++ b/pkgs/development/python-modules/kiwisolver/default.nix
@@ -1,6 +1,8 @@
 { lib
 , buildPythonPackage
 , fetchPypi
+, stdenv
+, libcxx
 }:
 
 buildPythonPackage rec {
@@ -11,7 +13,9 @@ buildPythonPackage rec {
     inherit pname version;
     sha256 = "ce3be5d520b4d2c3e5eeb4cd2ef62b9b9ab8ac6b6fedbaa0e39cdb6f50644278";
   };
-
+  
+  NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.isDarwin "-I${libcxx}/include/c++/v1";
+  
   # Does not include tests
   doCheck = false;
 
@@ -21,4 +25,4 @@ buildPythonPackage rec {
     license = lib.licenses.bsd3;
   };
 
-}
\ No newline at end of file
+}