if CONFIG_MODVERSIONS are set, the kernel doesn't compile :
make[2]: Entering directory /usr/src/linux-2.1.19/kernel'
gcc -D__KERNEL__ -I/usr/src/linux-2.1.19/include -Wall -Wstrict-prototypes
-O2 -fomit-frame-pointer -fno-strength-reduce -pipe -m486 -malign-loops=2
-malign-jumps=2 -malign-functions=2 -DCPU=586 -E -D__GENKSYMS__ ksyms.c |
/sbin/genksyms /usr/src/linux-2.1.19/include/linux/modules
updating /usr/src/linux-2.1.19/include/linux/modversions.h
gcc -D__KERNEL__ -I/usr/src/linux-2.1.19/include -Wall -Wstrict-prototypes
-O2 -fomit-frame-pointer -fno-strength-reduce -pipe -m486 -malign-loops=2
-malign-jumps=2 -malign-functions=2 -DCPU=586 -DMODVERSIONS -DEXPORT_SYMTAB
-c ksyms.c
In file included from /usr/src/linux-2.1.19/include/linux/module.h:15,
from ksyms.c:12:
/usr/src/linux-2.1.19/include/linux/modversions.h:7:
linux/modules/*.ver: No such file or directory
make[2]: *** [ksyms.o] Error 1
make[2]: Leaving directory /usr/src/linux-2.1.19/kernel'
make[1]: *** [first_rule] Error 2
make[1]: Leaving directory /usr/src/linux-2.1.19/kernel'
make: *** [linuxsubdirs] Error 2
-- Grobbebol's Home (Linux 2.0.x i586)