maintainer-feedback requested: [Bug 263596] editors/libreoffice: make robust against __cxa_exception ABI changes
Date: Tue, 26 Apr 2022 19:51:09 UTC
Bugzilla Automation <bugzilla@FreeBSD.org> has asked FreeBSD Office Team <office@FreeBSD.org> for maintainer-feedback: Bug 263596: editors/libreoffice: make robust against __cxa_exception ABI changes https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263596 --- Description --- Patch libreoffice to replace __cxa_get_globals()->caughtExceptions, which is a pointer to the start of a struct __cxa_exception, with __cxa_current_primary_exception(), which is a pointer to the end. This allows struct __cxa_exception to be extended at the start as was recently done in FreeBSD main and stable/13 on 64-bit architectures. Recently on FreeBSD main and stable/13 __attribute__((__aligned__)) was added to struct _Unwind_Exception which changes its size on 32-bit architectures, and that of __cxa_exception as well. Patch libreoffice to detect this so packages built on 13.0 still work on 13.1. Change the LIB_DEPENDS on libunwind to a BUILD_DEPENDS because we only need unwind.h (for FreeBSD 13.0 and older where that header is hidden in /usr/include/c++/v1). I've build and run tested on i386 and I'll test on amd64 as well but it would be nice if others could test aarch64 and powerpc. Note that this patch depends on the one in bug 263370.