From d7d694b315cd073f08d5a980498b4d0b9ded6e47 Mon Sep 17 00:00:00 2001
From: John Ellson <john.ellson@comcast.net>
Date: Thu, 22 Dec 2016 00:30:00 -0500
Subject: [PATCH] probably need gd-dev for diffimg

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index 8eef3be36..938b99546 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,7 @@ addons:
     - libxaw7-dev
     - freeglut3-dev
     - colorgcc
+    - gd-dev
 
 services:
 - docker
-- 
2.40.0