http://bugs.winehq.org/show_bug.cgi?id=30557
--- Comment #1 from Vitaliy Margolen vitaliy-bugzilla@kievinfo.com 2012-04-30 23:10:22 CDT --- These changes will pretty much break gstreamer usability for Wine. Considering that it is mostly broken in 64-bit distros it's not a huge loss.
Regardless, Wine absolutely requires vtable functionality. Without it gstreamer can not be used.