From cfbe0ef315af7bd6a015923611a8abb0c8df703b Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Thu, 26 Jul 2018 19:50:42 +0200
Subject: [PATCH] gem-config: add zookeeper (#44100)

---
 pkgs/development/ruby-modules/gem-config/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/ruby-modules/gem-config/default.nix b/pkgs/development/ruby-modules/gem-config/default.nix
index 3c355d085760..c79a586e5f3b 100644
--- a/pkgs/development/ruby-modules/gem-config/default.nix
+++ b/pkgs/development/ruby-modules/gem-config/default.nix
@@ -395,4 +395,8 @@ in
     '';
   };
 
+   zookeeper = attrs: {
+     buildInputs = stdenv.lib.optionals stdenv.isDarwin [ darwin.cctools ];
+   };
+
 }