Back out Linux updates since Travis CI still doesn't support Ubuntu Xenial...
@@ -15,7 +15,11 @@ matrix:
- os: linux
before_install:
- sudo apt-get -qq update
- - sudo apt-get install -y avahi-daemon avahi-utils cura-engine libavahi-client-dev libfreetype6-dev libgnutls28-dev libharfbuzz-dev libjbig2dec0-dev libjpeg-dev libmupdf-dev libnss-mdns libopenjp2-7-dev libpng-dev zlib1g-dev
+ # Note: Because Travis CI does not yet support Ubuntu Xenial 18.04, we
+ # cannot do build tests with MuPDF or other dependencies since the
+ # projects just aren't there... :/
+ # - sudo apt-get install -y avahi-daemon avahi-utils cura-engine libavahi-client-dev libfreetype6-dev libgnutls28-dev libharfbuzz-dev libjbig2dec0-dev libjpeg-dev libmupdf-dev libnss-mdns libopenjp2-7-dev libpng-dev zlib1g-dev
+ - sudo apt-get install -y avahi-daemon avahi-utils libavahi-client-dev libgnutls28-dev libjpeg-dev libnss-mdns libpng-dev zlib1g-dev
# macOS-specific build stuff
- os: osx
