Created attachment 197363 [details] patch USES=compiler:c++11-lang is required to compile this port on GCC-based architectures. Tested on amd64 and powerpc64.
Committed, thanks!
A commit references this bug: Author: yuri Date: Sat Sep 22 18:43:30 UTC 2018 New revision: 480427 URL: https://svnweb.freebsd.org/changeset/ports/480427 Log: math/SoPlex: fix build on GCC-based architectures Add USES=compiler:c++11-lang PR: 231598 Submitted by: Piotr Kubaj <pkubaj@anongoth.pl> Changes: head/math/SoPlex/Makefile