Mine
public text v1 · immutablekernel/sched.c:281: error: redefinition of cpu_of
kernel/sched.c:272: error: previous definition of cpu_of was here
make[2]: ** [kernel/sched.o] Erro 1
make[1]: ** [kernel] Erro 2
make[1]: Saindo do diretório `/usr/src/linux-2.6.18.3'
make: ** [debian/stamp-build-kernel] Erro 2
root@beltrao:/usr/src/linux# kernel_headers
bash: kernel_headers: comando não encontrado