r357452 turned "cap_rights_contains" into a static inline function. This made it disappear from libc.so and my program complains:
Undefined symbol "cap_rights_contains@FBSD_1.3"
I wonder if this function is still supposed to be there for compatibility with older binaries.
Hm, r357471 could also be the problem.
Thanks for the report. I'm going to restore it.
A commit references this bug:
Date: Tue Feb 11 18:13:54 UTC 2020
New revision: 357766
capsicum: restore the cap_rights_contains symbol
It is expected to be provided by libc.
Reported by: Jan Kokemueller