Created attachment 198314 [details] patch Add USES=compiler:c++11-lang to qt5 flavor to fix build on architectures using GCC 4.2 in base. While here, add USES=gl. Tested on powerpc64 and amd64. Hardware sponsored by IntegriCloud.
A commit references this bug: Author: linimon Date: Sun Oct 28 13:01:30 UTC 2018 New revision: 483291 URL: https://svnweb.freebsd.org/changeset/ports/483291 Log: Fix build with GCC-based architectures. PR: 232400 Submitted by: Piotr Kubaj Approved by: portmgr (tier-2 blanket) Changes: head/x11-toolkits/qwt6/Makefile