This is being built with binaries built October 9th, using sources supped
yesterday, October 18th, FWIW.

ld -o dosboot.sym -M -e _start -N -Ttext 0x100 start_dos.o doscommain.o exec_fromdos.o main.o devopen.o getopt.o ls.o  vers.o /usr/src/sys/arch/i386/stand/dosboot/lib/i386/libi386.a /usr/src/sys/arch/i386/stand/dosboot/lib/sa/libsa.a /usr/src/sys/arch/i386/stand/dosboot/lib/z/libz.a /usr/src/sys/arch/i386/stand/dosboot/lib/sa/libsa.a /usr/src/sys/arch/i386/stand/dosboot/lib/kern/libkern.a >dosboot.list
biosdisk_ll.o: Undefined symbol `_ourseg' referenced from text segment
*** Error code 1

Stop.

-- 
Mason Loring Bliss..mason@acheron.middleboro.ma.us..acheron.dyn.ml.org/mason
"In the drowsy dark cave of the mind dreams build their nest with fragments
  dropped from day's caravan."--Rabindranath Tagore..awake ? sleep : dream;