Comment 4 for bug 1760284

I installed linux-kernel-4.16.0-041600-generic, I'm able to boot it but Broadcomm WiFI driver which I supsected as a reason fails:
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.16.0-041600-generic /boot/vmlinuz-4.16.0-041600-generic
run-parts: executing /etc/kernel/postinst.d/dkms 4.16.0-041600-generic /boot/vmlinuz-4.16.0-041600-generic
ERROR (dkms apport): kernel package linux-headers-4.16.0-041600-generic is not supported
Error! Bad return status for module build on kernel: 4.16.0-041600-generic (x86_64)
Consult s/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information.
ERROR (dkms apport): kernel package linux-headers-4.16.0-041600-generic is not supported
Error! Bad return status for module build on kernel: 4.16.0-041600-generic (x86_64)
Consult /var/lib/dkms/vboxhost/5.0.32/build/make.log for more information.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.16.0-041600-generic /boot/vmlinuz-4.16.0-041600-generic
update-initramfs: Generating /boot/initrd.img-4.16.0-041600-generic
W: Possible missing firmware /lib/firmware/i915/skl_dmc_ver1_27.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1_04.bin for module i915

Attached.
Meanwhile there was standard kernel upgrade 4.13.0-39-generic and it does work(including WiFi and with secure boot enabled(after manually signing wl.ko module)) in opposite to 4.13.0-37-generic and AFAIR 4.13.0-38-generic.

So my problem was solved but I'm open do debug it further. One thing which changed also I did:
apt-get install libelf-dev because of some warning from DKMS suggesting that during 4.16 kernel post-install.