I am using instructions to install VirtualBox I am using the instructions listed here.
VirtualBox Installation - openSUSE

I am getting the following error

linux-ewbv:~ # /etc/init.d/vboxdrv setup
Stopping VirtualBox kernel module done
Recompiling VirtualBox kernel module failed
(Look at /var/log/vbox-install.log to find out what went wrong)
linux-ewbv:~ #

here is what the log says
/usr/share/virtualbox/src/build_in_tmp: line 99: make: command not found

any suggestions?
Thanks