VirtualBox install error

[marcus]

Hi,

When I try to install Virtualbox 3.1.4 in FreeBSD 8.0 I get the following 
error message.

#cd /usr/ports/emulators/virtualbox-ose
#make install clean
-------
...
....
Build: Pass - DLLs
kmk[1]: Entering directory `/usr/ports/emulators/virtualbox-
ose/work/VirtualBox-3.1.4_OSE'
/usr/local/share/kBuild/footer.kmk:3132: warning: overriding recipe for target 
`/usr/ports/emulators/virtualbox-
ose/work/VirtualBox-3.1.4_OSE/out/freebsd.x86/release/bin/src/vboxdrv/include/iprt/net.h'
....
....
kmk[2]: Leaving directory `/usr/ports/emulators/virtualbox-
ose/work/VirtualBox-3.1.4_OSE'
kmk[2]: Entering directory `/usr/ports/emulators/virtualbox-
ose/work/VirtualBox-3.1.4_OSE'
kmk[2]: *** Exiting with status 2
kmk[1]: *** [pass_dlls_this] Error 2
kmk[1]: Leaving directory `/usr/ports/emulators/virtualbox-
ose/work/VirtualBox-3.1.4_OSE'
kmk: *** [pass_dlls_order] Error 2
*** Error code 2

Stop in /usr/ports/emulators/virtualbox-ose.
*** Error code 1

Stop in /usr/ports/emulators/virtualbox-ose.

-------

Searching at freebsd maillist and forum I find similar problems with another 
people, but nothing solution.

http://forums.freebsd.org/showthread.php?t=8063&highlight=virtualbox
http://lists.freebsd.org/pipermail/freebsd-virtualization/2010-
January/000432.html


In the link below it seems that the guy managed to solve it, but I didn't get 
how he accomplished it.

http://old.nabble.com/Problems-building-emulators-virtualbox-ose-on-amd64-
td27229217.html


Can anybody help me?

Thanks.