Module Problems?

I'm a bit confused as to how this is possible, but, I recently installed the latest version of Sabayon and all that. And I'm trying to compile ndiswrapper. When I enter the make command, I get some nonsense about "can't find kernel build files".

So, I look in /lib/modules/2.6.20-sabayon-r3, and atempt to double-click the build file. I get something like "/lib/modules/2.6.20-sabayon-r3/build does not seem to exist anymore."

I've never experienced anything like this, so I'm out of ideas. If someone with more experience on the matter would care to shed some light, I'd be quite pleased.

Also, I'm using the mini version of Sabayon 3.3b

Thanks in advance.

 

Most distributions don't include the kernel sources (found in /usr/src/linux). It sounds like yours is missing.

The file should contain folders and files like these:
/arch
/block
/crypto
/Documentation
/drivers
/fs
/include
/init
/ipc
/kernel
/lib
/mm
/net
/scripts
/security
/sound
/usr
COPYING
CREDITS
Kbuild
MAINTAINERS
Makefile
Module.symvers
patches.txt
README
REPORTING-BUGS
System.map
vmlinux

If not, then it is not complete.