I just finished with a clean debian style install of knoppix 3.3, distro-upgraded to Debian Unstable. My plan was to then compile the official 2.6.0 release, but an odd error has come up. When I try any of the config options for the kernel (make config, make menuconfig etc etc) I get this error.

HOSTCC scripts/fixdep
In file included from /usr/include/sys/socket.h:35,
from /usr/include/netinet/in.h:24,
from scripts/fixdep.c:107:
/usr/include/bits/socket.h:305:24: asm/socket.h: No such file or directory
make[1]: *** [scripts/fixdep] Error 1
make: *** [scripts/fixdep] Error 2

Oddly, I tried with the 2.6.0 test 11 release, and make menuconfig works perfectly. I was really surprised not to find any matchs on a search here, or on google, given that I havn't done anything very unusual to this knoppix install after the dist-upgrade.

Anyone have any ideas on what the problem might be?