Odd whine during "make installworld"

System was running;

FreeBSD 16.0-CURRENT #652 main-n287884-16e47f317c4c: Sun Aug  2 13:47:23 UTC 2026     root@freebeast.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/GENERIC amd64 1600019 1600019

I then updated sources to main-n287899-1c91c3ae1ec6, and performed the
usual in-place source-based update.  During the "make installworld"
phase, I happened to note:

...
===> share/man/man3lua (install)
install   -o root -g wheel -m 444 intro.3lua.gz  /usr/share/man/man3lua/
===> share/man/man4 (install)
ld-elf.so.1: /bin/ls: Undefined symbol "fts_open@FBSD_1.9"
make[6]: /usr/src/share/man/man4/Makefile:1009: warning: Command "/bin/sh -c "/bin/ls -d /usr/src/share/man/man4/man4.*"" exited with status 1
install   -o root -g wheel -m 444 atf-test-case.4.gz  /usr/share/man/man4/
install   -o root -g wheel -m 444 aac.4.gz  /usr/share/man/man4/
....

Mind, that was not fatal; the "make installworld" completed, and the
system survived a reboot, reporting:

FreeBSD 16.0-CURRENT #653 main-n287899-1c91c3ae1ec6: Mon Aug  3 11:25:50 UTC 2026     root@freebeast.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/GENERIC amd64 1600019 1600019


I note that yesterday, updating from main-n287877-e96f1cbd690e to
main-n287884-16e47f317c4c using the same approach, I do not find a
similar whine in the build typescript.

And I see a similar whine in today's build typescripts on the two
other machines that have got that far this morning (and they also
appear to have treated it as a mere nuisance -- installworld completed
& reboot to new head was fine).

Peace,
david
-- 
David H. Wolfskill                              david@catwhisker.org

See https://www.catwhisker.org/~david/publickey.gpg for my public key.