Created attachment 175905 [details] patch The port now needs USES=pkgconfig.
A commit references this bug: Author: tijl Date: Tue Oct 18 15:58:14 UTC 2016 New revision: 424171 URL: https://svnweb.freebsd.org/changeset/ports/424171 Log: Add USES=pkgconfig to fix build. PR: 213592 Submitted by: Piotr Kubaj <pkubaj@anongoth.pl> Changes: head/net/belle-sip/Makefile