travis: force usage of Xcode 8.3 image Travis has upgraded the default Xcode images from 8.3 to 9.4 on 31st July 2018, including an upgrade to macOS 10.13. Unfortunately, this breaks our CI builds on our maintenance branches. As we do not want to include mayor changes to fix the integration right now, we force use of the old Xcode 8.3 images.
diff --git a/.travis.yml b/.travis.yml
index 4c7f8f1..83b6602 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,6 +37,7 @@ addons:
- valgrind
sudo: false
+osx_image: xcode8.3
matrix:
fast_finish: true