Emile Schwarz wrote:
> Hi all,
> 
> at last, it seems that I'm not alone (on that subject).
> 
> Martin, see the document (html, < 20 KB) at:
> 
> <http://www.netbsd.org/Documentation/elf.html>

This is excellent. Thank you for finding that for me. I am currently in 
the process of CVS getting the full sources - I already have kernel 
source of course, and I'm doing a make depend on my new config right now.

In /sys/arch/mac68k/conf you have the following file:

#       $NetBSD: std.mac68k,v 1.26 2001/11/20 12:56:32 lukem Exp $
#
# standard Macintosh information.
# roughly copied from std.sparc 14 Oct 1993.

machine mac68k m68k

options         HZ=60                   # mac clock runs at 60hz

# Executable support
options         EXEC_AOUT       # a.out binary support
options         EXEC_SCRIPT     # shell script support



Note the lack of options EXEC_ELF.

As per step 4 (Configure, install, and boot a kernel with EXEC_ELF, 
EXEC_AOUT, and COMPAT_AOUT all defined.) in the elf.html, I created a 
new file, elf.mac68k:

#       $NetBSD: std.mac68k,v 1.26 2001/11/20 12:56:32 lukem Exp $
#
# standard Macintosh information.
# roughly copied from std.sparc 14 Oct 1993.

machine mac68k m68k

options         HZ=60                   # mac clock runs at 60hz

# Executable support
options         EXEC_ELF        # time to go elf
options         EXEC_AOUT       # a.out binary support
options         COMPAT_AOUT     # needed for elf kernel
options         EXEC_SCRIPT     # shell script support



Then I changed my config file thusly:

include         "arch/mac68k/conf/std.mac68k"
becomes:
include         "arch/mac68k/conf/elf.mac68k"



In theory, this should provide for the appropriate kernel changes. You 
might also need to uncomment the below options line, but who knows?:

# The following is needed to run pre-NetBSD 1.6 binaries under ELF.
#options         COMPAT_AOUT_M68K # compatibility with NetBSD/m68k a.out



I did, just to hedge my bets. It takes an agonizingly long time to build 
a kernel (let alone the whole OS) on my IIci and I don't have another 
netbsd system on which I can build a cross-compiler - the closest thing 
I have is cygwin, and I don't trust it that far - So I'm doing all of my 
compilation natively.

Before this is all over I may run out of disk space, so it might be a 
long time before you hear about anything further on this front from me. 
If that happens, I guess I just have to tar up all my sources, save off 
my new kernel and config files and whatnot, and repartition and 
reinstall. sigh. I did go ahead and delete my mac68k/a.out X11R6 tree 
since it wasn't working for me anyway, so maybe I'll be okay. More on 
that later :)

Wish me luck! And if there's anyone who's already done this with 
-current, please let me know what else I should be doing.