Problems building emulators/virtualbox-ose on amd64

[Geoff Fritz]

I've been trying to build the virtualbox-ose port and amd64 for about a
week now.

It keeps failing with:

kmk[2]: Leaving directory `/tmp/workdir/usr/ports/emulators/virtualbox-ose/work/VirtualBox-3.1.2_OSE'
kmk[1]: *** [pass_dlls_this] Error 2
kmk[1]: Leaving directory `/tmp/workdir/usr/ports/emulators/virtualbox-ose/work/VirtualBox-3.1.2_OSE'
kmk: *** [pass_dlls_order] Error 2
*** Error code 2

I've tried various "make config" options, reverting make.conf to a pristine
state, and removing/rebuilding nearly all of the dependencies for the port.
Nothing has helped to rid me of the error.

Is there anything else I can try?

Thanks.

-- Geoff