Created attachment 198397 [details] patch USES=compiler:c++11-lang is necessary to build this port on GCC architectures. Tested on powerpc64 and amd64. Hardware sponsored by IntegriCloud.
Committed, thanks!
A commit references this bug: Author: thierry Date: Sat Oct 20 15:32:33 UTC 2018 New revision: 482562 URL: https://svnweb.freebsd.org/changeset/ports/482562 Log: Fix build with GCC-based architectures. PR: 232470 Submitted by: pkubaj (at) anongoth.pl Changes: head/math/mathmod/Makefile