(2.5.65) Unresolved symbols in modules?

[Torrey Hoffman <thoffman@arnor.net>]

I'm trying 2.5 for the first time.  I am getting hundreds of unresolved
symbols in (all?) modules.  Note that:
- I have installed the module-init-tools. 
- "which depmod" as root says /usr/local/sbin/depmod
- depmod -V as root says "module-init-tools 0.9.10"

But make modules_install as root produces:

[lots of mkdir -p /lib/modules/2.5.65/kernel/...; cp drivers/... .ko
/lib/modules/2.5.65/kernel/...]

and then:
if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.5.65; fi
depmod: *** Unresolved symbols in
/lib/modules/2.5.65/kernel/drivers/char/lp.ko
depmod:         parport_read
depmod:         parport_set_timeout
depmod:         parport_unregister_device
...
[lots and lots of unresolved symbols in lots of modules]

What am I doing wrong?  What web page or kernel documentation should I
be reading?

Thanks

Torrey Hoffman
thoffman@arnor.net