On Sun, Jan 10, 2021 at 4:26 PM David <da...@davidanne.com> wrote: > This a Raspberry PI 4 with ubuntu server 20.04 installed ... > config.guess timestamp = 2006-07-02 ^^^^^^^^^^
Your config.guess is nearly 15 years old and understandably does not know about AArch64. Current copies of config.guess and config.sub can be downloaded from https://git.savannah.gnu.org/cgit/config.git/tree/ . They should be drop-in replacements for whatever it is you're trying to build that was last updated in 2006. zw