- Update to 3.2.2
- Execute kldxref in do-install target. 
- Set SYSDIR to SRC_BASE to fix build if the FreeBSD sources are not
installed in /usr/src. 
- Set SRC_BASE to /usr/src if SRC_BASE is not set and not rely on the
/sys symlink. 
- Mark BROKEN on recent CURRENT.
Reported by: scf@ 
Submitted by: imp@ 
Many thanks to the VirtualBox developers (especially Alexander Eichner
for all his work and help), all tester and patch submitter and the whole
vbox@ team especially decke@.