Autoconf is a GNU tool that facilitates the creation of “configure” scripts used in installing GNU/Linux source code from `tar balls’. As can be seen by reading the manual on Autoconf via landing at the GNU Autoconf home page, Autoconf was created in 1991 by David Mackenzie. He was interviewed a few years ago and this was put into print here:
https://ffkp.se/en/2012/04/13/old-interviews-david-mackenzie/
And yes, ffkp.se is an English/Swedish bilingual WordPress Blog. By comparing notes there with notes at this personal Blog: http://blog.djmnet.org/ , the St. Olaf connection indicates that David Mackenzie, the first to work on Autoconf and a GNU/Linux old hand, blogs at blog.djmnet.org. So, I plan to follow his blog.