Please remove the BROKEN status and update the Makefile with: MASTER_SITES= http://shnutils.freeshell.org/shntool/dist/src/ With the updated source URL the port compiles fine for me.
Committed! Thanks!
A commit references this bug: Author: 0mp Date: Mon Nov 11 13:45:56 UTC 2019 New revision: 517261 URL: https://svnweb.freebsd.org/changeset/ports/517261 Log: Unbreak with a new master site While here: - Define the license. - Pet portclippy, portfmt, and portlint. PR: 241868 Submitted by: Ant?nio Barbosa <amrgbarbosa77@gmail.com> Changes: head/audio/shntool/Makefile