https://svnweb.freebsd.org/ports/head/devel/binutils/Makefile?r1=490859&r2=490858&pathrev=490859 broke powerpc64-binutils. EXTRA_PATCHES is wrong. Probably something like EXTRA_PATCHES=${MASTERDIR}/files/binutils-do-not-provide-shared-section-symbols.patch:-p1 is needed.
A commit references this bug: Author: bapt Date: Mon Jan 21 15:00:52 UTC 2019 New revision: 490865 URL: https://svnweb.freebsd.org/changeset/ports/490865 Log: Fix EXTRA_PATCHES usage PR: 235109 Changes: head/devel/binutils/Makefile