From 0cf5648bee9ec2eb694cbcbb61de469e3af4ec1f Mon Sep 17 00:00:00 2001
From: Randy Barlow <randy@electronsweatshop.com>
Date: Thu, 31 Dec 2015 13:40:57 -0500
Subject: [PATCH] Link with libz during the build.

Without this patch, there were undefined referenced to libz symbols
as shown by ldd -r on the resulting shared object.
---
 rebar.config | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rebar.config b/rebar.config
index 32cbe96..5b7cead 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,6 +1,7 @@
 {erl_opts, [debug_info]}.
 
-{port_env, [{"CFLAGS", "-g -O2 -Wall"}]}.
+{port_env, [{"CFLAGS", "-g -O2 -Wall"},
+            {"LDFLAGS","$LDFLAGS -lz"}]}.
 
 {port_specs, [{"priv/lib/ezlib_drv.so", ["c_src/ezlib_drv.c"]}]}.