I'm attempting to re-build the kernel with some options I want (netfilter/iptables). I did "make mrproper" and then reloaded my configs from a file saved earlier, so the source directory should be clean. The compilation runs for some time and then bombs. I get 7 undefined reference errors (all ACPI related) similar to arch/i386/kernel/kernel.o(.text.init+0x5328): In function `acpi_parse_lapic': : undefined reference to `acpi_table_print_madt_entry' and then make[1]: *** [kallsyms] Error 1 make[1]: Leaving directory `/usr/src/linux-2.4.22-1.2115.nptl' make: *** [vmlinux] Error 2 None of the ACPI options are enabled in my kernel config. I even manually edited a line in .config because I couldn't find a way to turn it off using the config tools: CONFIG_ACPI_BOOT=n I'm guessing that might actually break something important, but I gave it a shot. Any answers/suggestions? Thanks in advance, Ron