Okay, I finally got a good sup (Oct 17, 08:57 EST) off of
sup.netbsd.org.

For reference, gcc -v:
 Reading specs from /usr/lib/gcc-lib/mipsel-elf-netbsd/2.6.4/specs
 gcc driver version 2.6.4 snapshot 950107 executing gcc version 2.6.4

Trying to compile (config, make depend, make), I got the following
three errors:


(1) ../../../../arch/pmax/pmax/machdep.c: In function `initcpu':
    ../../../../arch/pmax/pmax/machdep.c:1229: `Mach_reset_addr' undeclared (first use this function)

(2) ../../../../arch/pmax/pmax/conf-glue.c:78: `ascdriver' undeclared here (not in a function)
    ../../../../arch/pmax/pmax/conf-glue.c:78: initializer element for `scsi_dinit.sd_cdriver' is not constant

(repeated on lines 79,80,81,82, 83, 84)

[It's pretty obvious what's going on for this.  But if I'm running a
 pmax, should I have to define the asc?  I know nothing about the
 hardware, just that the asc is listed only in the sections in the
 config file that refer to turbochannel models.]

(3) on ../../../../../../lib/libkern/scanc.c, bfd assertion fail elfcode.h:6442
       libkern/skpc.c, bfd assertion fail elfcode.h:6442
       libkern/strcat.c, bfd assertion fail elfcode.h:6442
       libkern/strcpy.c, bfd assertion fail elfcode.h:6442
       libkern/strncmp.c, bfd assertion fail elfcode.h:6442

[Could this just be that I have to grab a newer toolchain?]

My config file (for Decstation 2100s):
----------------------------------------------------------------------
#
# DECstation (3100 or 5000/xxx)
#
#	Generic config.new configuration for NetBSD/pmax
# 	$NetBSD: NEWCONF,v 1.5 1995/10/05 01:53:07 jonathan Exp $
#
include		"std.pmax"

maxusers	8

# does not really do anything anymore, but this replaces "ident GENERIC"
# (actually, it enables fudging of swap blocks to swap after a miniroot
#  in the b partition, and make the kernel call setconf() to ask
#  what the root device is.)
#options		GENERIC
options			HERD

# replaces "cpu ds5k/240"
# options		DS5000			# generic TC support and 3MAX support
# options		DS5000_240		# 3MAXPLUS (kn03) support
# options		DS5000_100		# 3MIN (kn02ba/kmin) support
# options		DS5000_25		# MAXINE (kn02ca/xine) support
# options		DS5000_200		# 3MAX (kn02) support, one day


options		DS3100			# PMAX (kn01) DECstation 2100, 3100


# You need to set this locally, but it doesn't do much outside the kernel.
# Set up /etc/localtime instead.
options		TIMEZONE="4*60"		# minutes west of GMT (for)
options		DST=1			# use daylight savings rules


# Standard system options
options		SWAPPAGER		# swap pager (anonymous and swap space)
options		VNODEPAGER		# vnode pager (mapped files)
options		DEVPAGER		# device pager (mapped devices)
#options	DIAGNOSTIC		# extra kernel debugging checks
options		DEBUG			# extra kernel debugging support
options		"COMPAT_43"		# compatibility with 4.3BSD binaries
#options	KTRACE			# system call tracing support
options		"NKMEMCLUSTERS=1024"	# 4K pages in kernel malloc pool
#options	KGDB			# support for kernel gdb
#options	"KGDBRATE=19200"	# kernel gdb port rate (default 9600)
#options	"KGDBDEV=15*256+0"	# device for kernel gdb

# Filesystem options
options		FIFO		# POSIX fifo support (in all filesystems)
options		FFS,QUOTA	# fast filesystem with user and group quotas
options		MFS		# memory-based filesystem
options		NFSCLIENT	# Sun NFS-compatible filesystem (client)
options		NFSSERVER	# Sun NFS-compatible filesystem (server)
options		KERNFS		# kernel data-structure filesystem
#options	FDESC		# user file descriptor filesystem
#options	UMAPFS		# uid/gid remapping filesystem
options		NULLFS		# null layer filesystem
#options	LFS		# Log-based filesystem (still experimental)
#options	PORTAL		# portal filesystem (still experimental)

# Networking options
options		INET		# Internet protocols
options		"TCP_COMPAT_42"	# compatibility with 4.2BSD TCP/IP
options		GATEWAY		# IP packet forwarding
options		MULTICAST	# Multicast support
options		MROUTING	# Multicast routing support
#options	ISO		# OSI networking
#options	TPIP
#options	EON

# pmax specific
options		COMPAT_ULTRIX	# ultrix compatibility

# Note that this configuration is unlikely to work, yet...
config		netbsd root on rz0a swap on rz0b dumps on rz0b
#config		rz1netbsd root on rz1a swap on rz0b and rz1b dumps on rz0b
#config		gennetbsd	swap generic


########################################################################
#                                                                      #
# DECstation Turbochannel configuration and options                    #
#                                                                      #
########################################################################

# tc*		at	mainbus0	# All but PMAXes have a turbochannel


########################################################################
# Common configuration for machines with IO ASIC chips                 #
# (3MIN, MAXINE, 3MAXPLUS)                                             #
########################################################################
#ioasic0		at	tc?
#clock0	at ioasic? 			# RTC
#asc0	at ioasic?			# system SCSI subslot
#scc0	at ioasic?
#le0	at ioasic?			# tc onboard lance
#scc1	at ioasic?			# Not present on Maxine

########################################################################
# MAXINE-only baseboard devices and on-baseboard "options"             #
########################################################################
#xcfb0	at tc?				# TC framebuffer "option"
#dtop0	at ioasic0
#isdn	at ioasic0
#fdc    at ioasic0			# floppy disk


########################################################################
# Configuration for 3MAX (5000/200) which has turbochannel but no ASIC.#
# 3MAX (5000/200) baseboard devices and on-baseboard "options"         #
########################################################################
#clock0	at mainbus0  			# RTC
#dc0	at mainbus0
#le0	at tc? #slot ?  offset ?	# TC ether "option" on baseboard
#asc0	at tc?				# TC scsi  "option" on baseboard
# For now, pretend this machine has an IOASIC.
#dc0	at ioasic?			# dc7083 four-port DZ device

########################################################################
#  Supported turbochannel option cards			               #
########################################################################
#cfb0	at tc?
#mfb0	at tc?
#sfb0	at tc?
#sfb1	at tc?
#le*	at tc? #slot ?  offset ?		# TC ether option
#tt0	at tc? #slot? offset ?


########################################################################
# Decstation 2100/3100 (aka PMAX aka KN01) configuration.              #
# (these don't really have any options except a framebuffer.)          #
########################################################################
clock0	at mainbus0			# RTC
pm0	at mainbus0			# 3100 onboard fb
dc0	at mainbus0			# dc7083 four-port DZ device
le0	at mainbus0			# 3100 onboard lance
sii0	at mainbus0			# onboard scsi


########################################################################
# SCSI configuration                                                   #
########################################################################

#
# SCSI configuration for new-config machine-independent SCSI driver
#
scsibus*	at sii?
#scsibus*	at asc?

sd*	at	scsibus?	target ? lun ?
st*	at	scsibus?	target ? lun ?
cd*	at	scsibus?	target ? lun ?


#
# SCSI configuration for old DECstation SCSI driver
#
oldscsibus*	at sii?
#oldscsibus*	at asc?

rz0	at	oldscsibus?	target ? drive ?
rz1	at	oldscsibus?	target ? drive ?
rz2	at	oldscsibus?	target ? drive ?
rz3	at	oldscsibus?	target ? drive ?
rz4	at	oldscsibus?	target ? drive ?
rz4	at	oldscsibus?	target ? drive ?
tz0	at	oldscsibus?	target?  drive ?
tz1	at	oldscsibus?	target?  drive ?


#
# pseudo-devices
#

pseudo-device	sl		 4	# serial-line IP ports
pseudo-device	pty		64	# pseudo ptys
pseudo-device	bpfilter	16	# packet filter ports
pseudo-device	loop
pseudo-device	vnd		4	# virtual disk ick

#pseudo-device	ether			# From old config. what does it mean?
pseudo-device	rasterconsole	1 	# NB: raster console requires "fb"
pseudo-device	fb		3	# up to 3 framebuffers
----------------------------------------------------------------------
Thanks,
--
Todd Masco     | "life without caution/ the only worth living / love for a man/
cactus@hks.net |  love for a woman/ love for the facts/ protectless" - A Rich
<a href="http://www.hks.net/~cactus/cactus.html">Cactus' Homepage</a>