From d2c633f55dc0ebb1186ff8e391ab1b82c3df3433 Mon Sep 17 00:00:00 2001
From: Matthew Justin Bauer <mjbauer95@gmail.com>
Date: Tue, 19 Jun 2018 13:01:04 -0400
Subject: [PATCH] click: fix error

forgot stdenv.
---
 pkgs/development/python-modules/click/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/click/default.nix b/pkgs/development/python-modules/click/default.nix
index 2a3004de379..68a4662d282 100644
--- a/pkgs/development/python-modules/click/default.nix
+++ b/pkgs/development/python-modules/click/default.nix
@@ -9,7 +9,7 @@ buildPythonPackage rec {
     sha256 = "02qkfpykbq35id8glfgwc38yc430427yd05z1wc5cnld8zgicmgi";
   };
 
-  patches = stdenv.lib.optional (lib.versionAtLeast version "6.7") (substituteAll {
+  patches = stdenv.lib.optional (stdenv.lib.versionAtLeast version "6.7") (substituteAll {
     src = ./fix-paths.patch;
     locale = "${locale}/bin/locale";
   });