linux-header-2.6.30 broken dependencies

[Loïc <lll+deb@m4x.org>]

Hi,

I'm trying to use the lastest 2.6.30 kernel from lenny-backports but I
need to the kernel headers for Virtualbox modules, but the kernel
headers seems broken:

$ sudo aptitude -t lenny-backports install linux-headers-2.6.30-bpo.1-all
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done
The following packages are BROKEN:
  linux-headers-2.6.30-bpo.1-amd64
The following NEW packages will be installed:
  linux-headers-2.6.30-bpo.1-all linux-headers-2.6.30-bpo.1-all-amd64{a}
linux-headers-2.6.30-bpo.1-common{a}
0 packages upgraded, 4 newly installed, 0 to remove and 8 not upgraded.
Need to get 4153kB of archives. After unpacking 25.8MB will be used.
The following packages have unmet dependencies:
  linux-headers-2.6.30-bpo.1-amd64: Depends: linux-kbuild-2.6.30 which is a virtual package.

Is there a plan to fix this ?
Thank you in advance.
-- 
Loïc

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