I built the package you specified with the exact same results as before. Perhaps there's something wrong with the method I use? Since the easliest versions it's never given me any grief, anyway the method i use:
I extract the package with the --extract-only flag, cd into the usr/src/nv dir, make SYSINCLUDE=/usr/local/src/linux-2.6.0/include and that's it. Anyone have any other ideas?