Can't install x86 version of 3.8.16 on M1 Mac?

[ut-adamc]

PYENV_ROOT was set to $HOME/python/x86_64. pyenv had been installed using an x86 version of homebrew, based in /opt/homebrew_x86

`BUILD FAILED (OS X 12.6.3 using python-build 20180424)

Inspect or clean up the working tree at /var/folders/wc/01hqy4890zv7n7wnqnkjr7vc0000gq/T/python-build.20230309144347.26579
Results logged to /var/folders/wc/01hqy4890zv7n7wnqnkjr7vc0000gq/T/python-build.20230309144347.26579.log

Last 10 log lines:
DYLD_LIBRARY_PATH=/var/folders/wc/01hqy4890zv7n7wnqnkjr7vc0000gq/T/python-build.20230309144347.26579/Python-3.8.16 ./python.exe -E -S -m sysconfig --generate-posix-vars ;
if test $? -ne 0 ; then
echo "generate-posix-vars failed" ;
rm -f ./pybuilddir.txt ;
exit 1 ;
fi
dyld[39034]: symbol not found in flat namespace (_libintl_bindtextdomain)
/bin/sh: line 1: 39034 Abort trap: 6 DYLD_LIBRARY_PATH=/var/folders/wc/01hqy4890zv7n7wnqnkjr7vc0000gq/T/python-build.20230309144347.26579/Python-3.8.16 ./python.exe -E -S -m sysconfig --generate-posix-vars
generate-posix-vars failed
make: *** [pybuilddir.txt] Error 1`

I also tried installing gcc-11 and compiling with that (CC=gcc-11 pyenv install 3.8.16); same result.