Re: [Gcl-devel] Re: gcl on ms windows

[Camm Maguire]

Greetings!

"Mike Thomas" <address@hidden> writes:

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> Hi Camm.
> 
> I apologise for not going further since my last communication, but I am
> spread rather thin time wise at present and GCL/Maxima is unfortunately not
> near the top of the priorites!
> 

No problem!

> >  Who is Rainer, and where can I
> > find out what he's been doing?
> 
> Rainer Keuchel (address@hidden) - Dan Stanger first mentioned his web
> site some time ago.  His Windows CE software port web page is
> http://www.rainer-keuchel.de/software.html and includes Maxima and GCL.
> 

Thanks for the pointer.  Will try to get a chance to examine the
diffs, though they appear large.

> >
> > > The CVS .data files (for example, "cmpnew/*.data") for GCL are identical
> to
> > > mine (according to "cvs diff") after being rebuilt from scratch here.
> > >
> >
> > Great!!!  Just to clarify, you've built a Mingw32 gcl from cvs,
> 
> Yes, with some mods (after Rainer) re the stack and heap checking macros.
> 

Is this all you had to incorporate from the CE port?

> > and
> > then used that to recompile the gcl lisp files, and got no
> > differences.
> 
> That was the case when last I communicated, but since then some diffs have
> crept in eg "compiler::exit" instead of "lisp::exit" in "cmpblock.data".
> These seem to be minor compared to the issues I refer to below which come up
> during the Maxima build, and which seem to be radical format differences.
> 
> > >    2. My scratch Maxima .data files are substantially different to Dan's
> > > (and the GCL ones) in that they seem to be a completely different
> format.
> > > For example, my new Maxima files lack a leading line of spaces followed
> by
> > > some kind of vector? format header which is present in Mingw32 GCL and
> the
> > > Cygwin builds:
> > >
> > >       #(#! blah blah....
> > >
> >
> > Can you provide a sample?
> 
> Attached are two.  The information in each of these Mingw generated exmples
> seems to be superficially similar to that found in Dan Stanger's examples,
> to the extent that similar, but not identical labels appear eg: in the
> attached "defopt.data", the labels:
> 
>     LISPIN-PACKAGE MAXIMA
>     SYSTEM%INIT
> 
> 
> appear, whereas in Dan's .data file, the spelling is:
> 
>    lisp::in-package "MAXIMA"
>    system::%init
> 
> However, Dan's data files (and my GCL build) have lisp vector syntactic
> sugar surrounding the labels eg:
> 
> #(#!
> (lisp::in-package "MAXIMA")
> #((system::%init . #((system::sputprop (lisp::quote maxima::defopt)
> (lisp::quote maxima::macsyma-module) (lisp::quote (lisp::macro)))
> (system::mm (lisp::quote maxima::defopt) 0))))
> )
> 
> which is absent from my Maxima build files.  It is as though I am generating
> a binary encoding rather than an ascii representation of the data segment
> when building Maxima.
> 
> Once again, I emphasise that when my version of GCL compiles itself, the
> .data files are not mangled, and appear to be exactly the same format as
> those generated by Dan, and which appear in CVS.
> 

OK, this seems to have been superceded by your later progress.  What
was the source of these discrepancies?  Why don't they matter?

> >
> > >    3. They are also upper case, whereas Dan's and the GCL .data files I
> made
> > > (and the CVS GCL ones) are all lower-case!!!
> > >
> >
> > Very odd, but isn't lisp case insensitive?  I wonder if this could
> > also be a system (i.e. Mingw) matter.  Being completely ignorant, but
> > guessing that there is a DOS legacy, perhaps 'printf' statements are
> > compiled to produce upper case?  Try a hello world program in C.
> 
> Yes, Common Lisp is case insensitive, but this is definitely not the
> problem - Mingw32 printf() behaves the same as any other in this case.
> 
> My guess is that for some reason or other, I am producing an internal
> representation of the data when compiling Maxima, and for some further
> unknown reason, this does not happen when building GCL.
> 

OK, has this since become clear?

> > Agreed, this would be great!
> 
> Sure would!  Once again apologies on the delay, probably more to go.
> 
> > "The earth is but one country, and mankind its citizens."  --  Baha'u'llah
> 
> My sentiment exactly although it would be nice if we could all treat our
> neighbours nicely.  Let's hope that free software helps break down some of
> the barriers.
> 
> Mike Thomas.
> 
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> 

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