proprietary gfx drivers packages

[laprjns]

Yes for now, the kernel-source package is required.
But only a few includes files are required in fact, not the "source" files. kernel-headers should be enought, but for a bit of time, the slackware kernel-headers package is bad done. Same for VirtualBox drivers.
Maybe we must check what is missing from kernel-headers and correct it ?

Apparently it's been solved in ZW snapshot with the latest kernel and kernel header packages (2.6.31.4). I can build vbox modules without the kernel-source package. Haven't tired building the nvidia kernel module, but from the zw mailing list, this was addressed also.