From 1e0694f7c92f42e61320af415b8891faa86f3140 Mon Sep 17 00:00:00 2001
From: Erik Arvstedt <erik.arvstedt@gmail.com>
Date: Wed, 8 May 2019 17:41:13 +0200
Subject: [PATCH] gem-config: add zlib

---
 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 af89cb334af..115739bd404 100644
--- a/pkgs/development/ruby-modules/gem-config/default.nix
+++ b/pkgs/development/ruby-modules/gem-config/default.nix
@@ -524,6 +524,10 @@ in
     '';
   };
 
+  zlib = attrs: {
+    buildInputs = [ zlib ];
+  };
+
   zookeeper = attrs: {
     buildInputs = stdenv.lib.optionals stdenv.isDarwin [ darwin.cctools ];
   };