Created attachment 204011 [details] patch Add USES=compiler:c++11-lang to fix build on GCC architectures. Tested on powerpc64 and am64.
A commit references this bug: Author: pkubaj Date: Fri May 17 10:38:57 UTC 2019 New revision: 501851 URL: https://svnweb.freebsd.org/changeset/ports/501851 Log: multimedia/libav: fix build with GCC-based architectures Add USES=compiler:c++11-lang to fix build on GCC architectures. PR: 237561 Approved by: dem.procopiou@gmail.com (maintainer timeout), mentors (implicit approval) Changes: head/multimedia/libav/Makefile