https://marc.info/?l=openbsd-ports&m=179241414029592

> I doubt much will be merged upstream. Many updates we have can technically run on other OSes (%gs stubs won't be built on Linux because %gs is correctly set, SIGUSR1 will work but less optimally, etc). However I picked an approach where everything that is done for OpenBSD is just marked as OpenBSD only. I did that purely to simplify my life while I was working on it and clearly mark the changes.

> When I was talking to Wine maintainers a month ago, they were hesitant to accept even patching Wine so it compiles for OpenBSD, mostly because it's another OS they will have to support and keep operational, while the %gs stub fix is something they definitely cannot take upstream. They are very hesitant to take anything that is changing the "emulated" application code.

Yes, unfortunately OpenBSD maintainers will have to keep this running for now. NetBSD is apparently in a similar situation. Perhaps their efforts can be pooled at some point if the patches don’t diverge too much.