commit 3409f7a87160b5c7b61f0b7f377705643dfc7428
Author:     Fabian Greffrath <fabian@greffrath.com>
AuthorDate: Wed Jan 23 09:01:03 2019 +0100
Commit:     Fabian Greffrath <fabian@greffrath.com>
CommitDate: Wed Jan 23 10:11:11 2019 +0100

    add libpng-dev to the dependencies for the travis build
---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index 921510ab..10a27331 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ addons:
     apt:
         packages:
         - cppcheck
+        - libpng-dev
         - libsdl2-dev
         - libsdl2-mixer-dev
         - libsdl2-net-dev