https://github.com/coin3d/coin/pull/404 (he he number 404 not found)
Created attachment 216644 [details] coin-egl.patch
A commit references this bug: Author: cmt Date: Wed Jul 22 20:08:21 UTC 2020 New revision: 542891 URL: https://svnweb.freebsd.org/changeset/ports/542891 Log: graphics/Coin: Fix GLX glue trying to use non-GLX display this is said to make Coin usable on Wayland and the likes PR: 248154 Submitted by: Greg V Obtained from: https://github.com/coin3d/coin/pull/404 Changes: head/graphics/Coin/Makefile head/graphics/Coin/distinfo
not that I have wayland for testing, but here you are. Thanks for reporting. I took the liberty of bumping Coin for "functionality change".