Created attachment 220489 [details]
Log of build procedure
Build of net/stone fails in amd64 sysytem.
I remember there was no problem in i386 system.
Because I do not have the knowledge on the programming language, I cannot make any patche.
A commit references this bug:
Date: Wed Jan 13 11:18:29 UTC 2021
New revision: 561456
Unbreak the build against contemporary versions of OpenSSL.
It was because of OpenSSL, should be fixed in ports r561456.