Created attachment 227431 [details]
* Update to 2.71.
* Pet portclippy.
* Reformat Makefile with portfmt.
Release Notes (2.70): https://lists.gnu.org/archive/html/autotools-announce/2020-12/msg00001.html
Release Notes (2.71): https://lists.gnu.org/archive/html/autotools-announce/2021-01/msg00000.html
This version isn't fully backwards compatible so I suspect there might be significant fallout from this. I'd like to wait with this update until some port actually needs it.