No package for net/relayd

Hello,

I wanted to use net/relayd to relay IPv4 UDP traffic to another IPv6
address. However, it seems like the port is unavailable as a package for
most architectures [1] because it fails to build.

I cannot see why it's failing to build. Can anyone confirm that the
build generally works before I try to build it from source? (Because I'm
on a VPS with limited resources, and building it might take a lot of
time.)

[1] https://www.freshports.org/net/relayd/

Regards,
Souji