From 6b2db852be52f3e97cfe2f84c77b249a6688a935 Mon Sep 17 00:00:00 2001
From: Matthias Volk <matthias.volk@cs.rwth-aachen.de>
Date: Wed, 10 May 2017 14:11:23 +0200
Subject: [PATCH] Ruby is needed in docker

---
 travis/dockerfiles/common_install.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/travis/dockerfiles/common_install.sh b/travis/dockerfiles/common_install.sh
index bd9358bdb..588e56a56 100644
--- a/travis/dockerfiles/common_install.sh
+++ b/travis/dockerfiles/common_install.sh
@@ -5,6 +5,7 @@ set -e
 
 apt-get update -qq
 apt-get install -y --no-install-recommends \
+    ruby \
     git \
     cmake \
     libboost-all-dev \