compat4x seems to have extra logic to, as I assume, coexist with compat3x, which has(d) two libraries with the same versions. However there's no more compat3x, so this logic seems to not be needed anymore. This also fixes stage-qa. The port is unmaintained, but I'd like a quick review from portmgr or newer compat?x maintainer.
Created attachment 161287 [details] Patch
Looks good.
A commit references this bug: Author: amdmi3 Date: Thu Oct 8 13:25:59 UTC 2015 New revision: 398822 URL: https://svnweb.freebsd.org/changeset/ports/398822 Log: - Remove obsolete logic used to coexist with compat3x, fix stage-qa PR: 203272 Approved by: mat Changes: head/misc/compat4x/Makefile head/misc/compat4x/pkg-plist.freebsd5