Re: [Gcl-devel] Re: [Maxima] A bug in maxima-5.10.0.a

[Vadim V. Zhytnikov]

Hi!

I see from gcl code that *tmp-dir* is initialized by
(gcl-temp-dir) only in one place - toplevel in gcl_cmpmain.lsp.
And this works well for gcl itself but not for maxima
and I really don't understand why.  I see only two ways to
resolve the problem on gcl's side:

1. Call get-temp-dir whem gazonk-name is called.
Inefficient but reliable.

2. Insert *tmp-dir* reset somewhere in the initialization
code which will be executed for any image created by
gcl (like maxima executable).


> > I'm not sure this is really GCL bug.  The point that gcl
> > always resets *tmp-dir* on start up.  But this doesn't
> > happen with Maxima image.  Probably Maxima itself should
> > take care of resetting *tmp-dir*.
>
> Why is *tmp-dir* not assigned correctly in the Maxima image?
> If Maxima is preventing GCL from assigning this value correctly,
> or causing GCL to assign it incorrectly, it is a Maxima bug.
> Otherwise it is a GCL bug.
>
> On the whole I don't think Maxima should try to manage
> internal variables for each Lisp implementation. There is
> probably already some of that happening now, but I think
> we should steer away from doing more of it.


--
     Vadim V. Zhytnikov

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