unwind.h and openoffice ports

From: Tijl Coosemans <tijl_at_FreeBSD.org>
Date: Thu, 28 Apr 2022 20:40:19 UTC
Hi Don (and office@),

Similar to editors/libreoffice I've committed some patches to
editors/openoffice-* to address recent changes to cxxabi.h and unwind.h
and to make it robust against future changes.  Please let me know if
there are any issues or if you have any questions.  I also think the
patches are good enough to be upstreamed.

https://cgit.FreeBSD.org/ports/commit/?id=88045c0549d90ad92d5fc630580705107a3f89f2
https://cgit.FreeBSD.org/ports/commit/?id=2c64d6af43f77d45810a5e183323c856dc7705e2