From 2e79bd000cf2802cc677dc2869372891ca460dc3 Mon Sep 17 00:00:00 2001
From: Carl Kittelberger <icedream@icedream.pw>
Date: Thu, 13 Apr 2017 16:27:58 +0200
Subject: [PATCH] Fix missing functions from zlib that the linker needs.

---
 Dockerfile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 50168a7..b6491d0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,11 +9,12 @@ FROM alpine:3.5
 ARG GUETZLI_VERSION=v1.0.1
 RUN \
 	apk add --no-cache --virtual .build-deps \
-		libpng-dev \
 		alpine-sdk \
-		git \
-		coreutils \
 		cmake \
+		coreutils \
+		git \
+		libpng-dev \
+		zlib-dev \
 		&&\
 \
 	git clone "https://github.com/google/guetzli.git" /var/tmp/guetzli &&\