Try starting Julia with:

julia --lisp

This isn't documented because it's not meant to be an official part of 
Julia. 
At present, Julia's parser is written in Scheme. That command lets you use 
the Scheme implementation that Julia uses internally. 

Then look at
(trace <procedure-name>)
to get closer to the failure.

On Thursday, December 29, 2022 at 11:01:26 AM UTC-5 [email protected] wrote:

> Le mar. 27 déc. 2022 à 14:41, Waldek Hebisch
> <[email protected]> a écrit :
> >
> > On Tue, Dec 27, 2022 at 10:52:04AM +0100, Grégory Vanuxem wrote:
> > > Hello Waldek,
> > >
> > > Le mar. 27 déc. 2022 à 02:43, Waldek Hebisch
> > > <[email protected]> a écrit :
> > > >
> > > > On Wed, Dec 21, 2022 at 12:38:15PM +0100, Grégory Vanuxem wrote:
> > > > > Hello Waldek, hello all,
> > > [SNIPPET]
> > >
> > > >> The base is done for me, but... The Julia library requires an
> > > >> initialisation and I can't figure out how to initialize its 
> environment at
> > > >> startup, I always encounter a fatal error: ReadOnlyMemoryError
> > >
> > > > I have never seen such a message.
> > >
> > > Me too, and, difficult to debug in fact.
> > <snip>
> > > > > fatal: error thrown and no exception handler available.
> > > > > ReadOnlyMemoryError()
> > > > > unknown function (ip: 0x52f7062f)
> > > > <snip>
> >
> > Just a little remark: Google says that "error thrown and no
> > exception handler available" is Julia error message. Since
> > you are _not_ calling Julia this must be exception handler
> > installed by Julia. But sbcl depends on exceptions and
> > its execetions should go to sbcl handlers. If Julia and
> > sbcl wants to take over the same signal (likely SIGSEGV),
> > then you are in trouble.
>
> You're in touch with God I believe*, thanks. I believe something is right 
> here.
> __
> Greg
> * not yo be taken literally (SIGTRAP for info)
>

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