I think the test result indicates you're building 64-bit.
The compiler and config.guess on your system is configured for 64-bit. Although that the GNU Smalltalk ChangeLog indicates that building 64bit is possible now, I'd still (as I said in my previous email) think about : ./configure i686-unknown-linux-gnu or something similar to target 32bit. Is the GNU smalltalk 3.2.5 in ubuntu (the one that you used before) 32bit or 64bit ? $ file gst gst: ELF 32-bit LSB executable 80386 Version 1, dynamically linked, not stripped Regards, David Stes ----- Op 4 feb 2021 om 19:56 schreef Gary Highberger gary.highber...@gmail.com: > Test results: > $ ./build-aux/config.guess > x86_64-unknown-linux-gnu