Created attachment 197315 [details] patch USES=compiler:c11 is needed on powerpc64 to fix compilation. Tested on amd64 and powerpc64.
A commit references this bug: Author: linimon Date: Sun Sep 23 05:12:55 UTC 2018 New revision: 480455 URL: https://svnweb.freebsd.org/changeset/ports/480455 Log: Fix build on gcc-bases archs. PR: 231558 Submitted by: Piotr Kubaj Approved by: portmgr (tier-2 blanket) Changes: head/math/metis/Makefile