Created attachment 198168 [details]
Add USES=compiler:c++11-lang to fix build with architectures using GCC in base.
Tested on powerpc64 and amd64.
Hardware sponsored by IntegriCloud.
A commit references this bug:
Date: Sun Oct 28 10:05:25 UTC 2018
New revision: 483259
Fix build with GCC-based architectures.
Submitted by: Piotr Kubaj
Approved by: portmgr (tier-2 blanket)