From 51856df2a1b465eb93d5966f2013f64a916d5a65 Mon Sep 17 00:00:00 2001
From: hsloan <ishaqsloan@gmail.com>
Date: Wed, 28 Jun 2017 16:23:34 -0400
Subject: [PATCH] nlohmann_json: Don't use stdenv.cross

---
 pkgs/development/libraries/nlohmann_json/default.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/nlohmann_json/default.nix b/pkgs/development/libraries/nlohmann_json/default.nix
index a5a808c1f615..9fb614cd071a 100644
--- a/pkgs/development/libraries/nlohmann_json/default.nix
+++ b/pkgs/development/libraries/nlohmann_json/default.nix
@@ -1,4 +1,6 @@
-{ stdenv, fetchFromGitHub, cmake }:
+{ stdenv, fetchFromGitHub, cmake
+, hostPlatform
+}:
 
 stdenv.mkDerivation rec {
   name = "nlohmann_json-${version}";
@@ -21,7 +23,7 @@ stdenv.mkDerivation rec {
   crossAttrs = {
     cmakeFlags = "-DBuildTests=OFF";
     doCheck = false;
-  } // stdenv.lib.optionalAttrs (stdenv.cross.libc == "msvcrt") {
+  } // stdenv.lib.optionalAttrs (hostPlatform.libc == "msvcrt") {
     cmakeFlags = "-DBuildTests=OFF -DCMAKE_SYSTEM_NAME=Windows";
   };