Yes, the jpeg-xl s390x build tests fail unless we use gcc 13. I reverified this today:
https://launchpadlibrarian.net/775617795/buildlog_ubuntu-plucky-s390x.jpeg-xl_0.11.1-1build1_BUILDING.txt.gz We also opt into gcc 13 on riscv64. That might be unnecessary but I haven't tested that again yet. Thank you, Jeremy Bícha
