[vbox-dev] Build failure in Mac OS X and Shared Folder bug patch not applied.

[Gi youl Kim]

When I tried to build VBox on Mac OS X, I found HostDrivers/VBoxNetFlt
is missing which is required for darwin build.
Look at http://virtualbox.org/browser/trunk/src/VBox/HostDrivers/Makefile.kmk

Also I found VBox 1.6.4 still contains the shared folder bug.
Look at http://virtualbox.org/changeset/9880

I submitted the patch and applied to repository. Also I checked the
bug was fixed with revision 9880. It looks like the released 1.6.4 is
not built with same source code.

Any comment?