Re-added freeglut package to travis.yml until GLU is removed from pyglet.
dist: xenial
-language: python
services: xvfb
+addons:
+ apt:
+ update: true
+ packages:
+ # - ffmpeg
+ - freeglut3-dev
+
matrix:
include:
- name: "Python 3.7 on Linux"
- python:
- "3.7"
+ - "3.8-dev"
- "pypy3"
- name: "Python 3.7 on MacOS"
