Created attachment 221066 [details] git(1) diff against the ports tree libgnuregex has been removed in -CURRENT. Switch to using the newer version that's provided in ports as of ports r559542.
A commit references this bug: Author: dinoex Date: Thu Jan 7 09:48:51 UTC 2021 New revision: 560695 URL: https://svnweb.freebsd.org/changeset/ports/560695 Log: - use libgnuregex from ports PR: 252246 Submitted by: Kyle Evans Changes: head/news/ifmail/Makefile head/news/ifmail/files/patch-CONFIG