Created attachment 199647 [details]
USES=compiler:c++11-lang is necessary to fix build on GCC architectures.
Tested on powerpc64 and amd64.
Hardware sponsored by IntegriCloud.
A commit references this bug:
Date: Sun Dec 2 12:52:58 UTC 2018
New revision: 486413
USES=compiler:c++11-lang is necessary to fix build on GCC-based
Submitted by: Piotr Kubaj
Approved by: portmgr (tier-2 blanket)