Here is a proof of concept - https://github.com/notroj/httpd/blob/a73adfc8f1c01fbb6a3d493582f9c49c7c942756/.travis.yml
This runs using the full test suite using a few different configurations and also does builds with -Werror and maintainer-mode - https://travis-ci.org/notroj/httpd/builds/607213820 ...this should be very easy to extend with more configurations. Can we merge the docker way with this kind of matrix type travis configuration? Regards, Joe