give TravisCI a try

.travis.yml

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+# Travis build integration.
+# https://docs.travis-ci.com/
+
+language: c
+
+os:
+  - linux
+
+compiler:
+  - gcc
+  - clang
+
+script:
+  - ./test/travis.sh

test/travis.sh

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+#!/bin/bash
+# Copyright (c) 2007-2018 The OpenRC Authors.
+# See the Authors file at the top-level directory of this distribution and
+# https://github.com/OpenRC/openrc/blob/master/AUTHORS
+#
+# This file is part of OpenRC. It is subject to the license terms in
+# the LICENSE file found in the top-level directory of this
+# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
+# This file may not be copied, modified, propagated, or distributed
+# except according to the terms contained in the LICENSE file.
+
+set -e
+set -u
+set -x
+
+# These are steps to run on TravisCI under a containerized Ubuntu system.
+# See $TOP/.travis.yml for more info about the TravisCI setup.
+
+cpus=$(getconf _NPROCESSORS_CONF || echo 1)
+# make on TravisCI doesn't support -O yet
+make -j"${cpus}"
+
+# This make whitespace/etc. checks fatal.
+export FATAL_CHECKS=1
+make test