Re: Re: Build failure on FreeBSD 4

gerd.moellmann <at> t-online.de (Gerd Moellmann) writes:

> Christophe Rhodes <csr21 <at> cam.ac.uk> writes:
>
>> > This is from building with current CVS CMUCL, so it might actually
>> > indicate a problem in CVS CMUCL, dunno.  Any idea?
>> 
>> Ew.  Well, nothing in SBCL itself should be referring to
>> C::%INSTANCE-TYPEP (evidence: it builds on clisp and openmcl, neither
>> of which have such  so I'd be suspicious of a transform or two in
>> cmucl.  What does the backtrace look like?
>
> I'm afraid I don't know the steps to get a backtrace while building SBCL.
> Can you please tell?

Is there no mode in cmucl to get a backtrace on fatal error in batch
mode?  Oh well, never mind .  The easy way is, instead of
  ./make.sh 'lisp -batch' # what I presume you're using to build
to use
  ./make.sh 'lisp'
and when you get to the debugger, type "backtrace" 

I think the above works; if it doesn't, the stage which is failing is
make-host-2.sh (when the cross-compiler compiles the sbcl source);
once you've got to that stage, starting cmucl and pasting in forms one
by one from that script should get you to a suitable debugger prompt.

Cheers,

Christophe
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