You answered your own question with that output: there's no /usr/include/sys folder on your system. And, despite your assertion, there isn't one on current x86_64 Debian systems, either. It's /usr/include/x86_64-linux-gnu/sys.Code:
$ find / -name "sys" 2>/dev/null/etc/apparmor.d/tunables/sys/sys/usr/lib/aarch64-linux-gnu/perl/5.36.0/sys/usr/include/aarch64-linux-gnu/sys/proc/sys
Not sure how a link to a 2012 Broadcom document that never mentions /usr/include bolsters your argument. Maybe this old wizard is failing parity in core?
Statistics: Posted by scruss — Sat Jan 17, 2026 10:47 pm