Re: [Gcl-devel] Re: Axiom on Windows

[Camm Maguire]

Greetings!

"Mike Thomas" <address@hidden> writes:

> Hi Camm.
> 
> | > Camm - What happens on Linux with these items?
> |
> | >(namestring nil)
> |
> | "NIL"
> |
> | >(probe-file "./")
> |
> | #p"/fix/k/camm/gcl/gcl-2.6.2pre/"
> |
> | >
> |
> | I suspect the probe-file -- would be great if you could track this
> | down when time permits.
> 
> Thanks for the comparison - I'm getting closer to having a FreeBSD machine
> at home so hopefully won't have to hassle you for these sorts of things
> soon.
> 
> I had already found the fault, but decided to rewrite again to remove getwd
> on MinGW, also adding checks for NIL arguments in some of those functions
> (see transcript at end).  This is all now in HEAD, which builds Maxima
> successfully.
> 

Great!  I will not miss getwd if you have something better for mingw.

> Sorry, I didn't try to track down mallocing in getcwd under the conditions
> we were facing.
> 

Not to worry as long as you keep in mind the following general rule --
when writing directly into lisp object memory, make sure you exit and
finish before a gc can be called.

> There still remains the harder issue of why the error state is so unstable.
> I'm reading up on set/longjump on MSDN and in our code to see if I can see
> anything obvious.
> 

This issue is (at least not completely) windows specific.  We need to
go over the error system with a fine tooth comb for 2.7.0.

Take care,

> Cheers
> 
> Mike Thomas.
> 
> 
> >(namestring nil)
> 
> Error in EVAL [or a callee]: NIL argument in coerce_to_namestring.
> 
> Fast links are on: do (use-fast-links nil) for debugging
> Broken at NAMESTRING.  Type :H for Help.
>  1 (Continue) Return to top level.
> dbl:>>1
> 
> Top level.
> >(truename nil)
> 
> Error in EVAL [or a callee]: Cannot get the truename of NIL.
> 
> Fast links are on: do (use-fast-links nil) for debugging
> Broken at TRUENAME.  Type :H for Help.
>  1 (Continue) Return to top level.
> dbl:>>1
> 
> Top level.
> 
> Cheers
> 
> Mike Thomas.
> 
> 
> 
> 

-- 
Camm Maguire                                            address@hidden
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"The earth is but one country, and mankind its citizens."  --  Baha'u'llah