On a simular note:

ld -T /sys/arch/i386/conf/kern.ldscript -Ttext c0100000 -e start -X -o netbsd ${SYSTEM_OBJ} vers.o
subr_autoconf.o: In function `config_init':
subr_autoconf.o(.text+0x18): undefined reference to `cfdriver_list_initial'
subr_autoconf.o(.text+0x20): undefined reference to `cfdriver_list_initial'
subr_autoconf.o(.text+0x51): undefined reference to `cfattachinit'
subr_autoconf.o(.text+0x57): undefined reference to `cfattachinit'

(/sys/kern/subr_autoconf.c (1.76) appears to be the only place the
above are referenced, yet the code types them as externs.)

-- 
Chris Baird,, <abuse@brushtail.apana.org.au>