Created attachment 195078 [details] liburcu.patch https://github.com/freebsd/freebsd-ports/commit/c865acd463842323a8ac415cb797aa9a2cc8d17c Somewhere between 0.7.13 and 0.10.0 aarch64 support was added.
A commit references this bug: Author: linimon Date: Tue Oct 30 13:29:47 UTC 2018 New revision: 483487 URL: https://svnweb.freebsd.org/changeset/ports/483487 Log: Unmark broken on aarch64. PR: 229726 Submitted by: greg at unrelenting dot technology Approved by: portmgr (tier-2 blanket) Changes: head/sysutils/liburcu/Makefile