build: Update Travis-CI config
Container updates for 2017Q2:
https://blog.travis-ci.com/2017-06-21-trusty-updates-2017-Q2-launch
diff --git a/.travis.yml b/.travis.yml
index 1587eed..709bfd8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,7 +36,7 @@
before_install:
# Install the appropriate Linux packages.
- - if [[ "$VULKAN_BUILD_TARGET" == "LINUX" ]]; then sudo apt-get -y install libxkbcommon-dev libwayland-dev libmirclient-dev libxrandr-dev; fi
+ - if [[ "$VULKAN_BUILD_TARGET" == "LINUX" ]]; then sudo apt-get -y install libxkbcommon-dev libwayland-dev libmirclient-dev libxrandr-dev libx11-xcb-dev; fi
# Install the Android NDK.
- if [[ "$VULKAN_BUILD_TARGET" == "ANDROID" ]]; then export ARCH=`uname -m`; fi