Hi Paul, since the repository is hosted on GitHub (https://github.com/eggert/tz), would you accept patches that would set up a simple GitHub workflow that would build on several platforms/configurations on commit, so as to prevent such regressions going unnoticed?
GitHub provides the actions/workflows for free, I find them quite handy in tzdata (e.g. https://github.com/python/tzdata/blob/master/.github/workflows/tests.yml) and other projects. Best Regards, Stan Ulbrych
