On Wed, Jan 05, 2022 at 03:59:34PM -0500, Greg Troxel wrote: > Looking at autoconf releases, we should support 2.69, released in > 2012-04 and current until 2020-12, and I see zero point in supporting > anything older. Even the CentOS people will be ok with that, I think. Autoconf 2.69 works for me (that's why I have in all my dev machines) --strk;