I recently installed a patch for that bug, here: https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=e5f5e535adec83b146bfc921d9005ecf6a846464
- autoreconf can leave config.h.in older than aclocal.m... Christian Weisgerber
- Re: autoreconf can leave config.h.in older than ... Paul Eggert