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Re: [Fink-users] TeXmacs and Maxima


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  • From: Joris van der Hoeven <address@hidden>
  • To: <address@hidden>
  • Subject: Re: [Fink-users] TeXmacs and Maxima
  • Date: Fri, 20 Jun 2003 20:09:42 +0200 (CEST)

> > This actually poses a bigger problem: The locate database has a tendency
> > to not be up to date, because in the best case it is updated once a day,
> > and on laptops typically it is never updated at all unless
> > locate.updatedb is started manually. Now since texmacs uses locate to
> > find all kinds of files, pixmaps, TeX font maps, and apparently also
> > documentation, it is inevitable that it will make mistakes.
>
> After looking into this some more (I wish I hadn't!), it seems to me
> that the use of 'locate' is restricted to some truly evil hacks by which
> texmacs tries to find paths to the TeX and maxima installation.
>
> I hope a more standard way to do this can be found. Or maybe for fink's
> texmacs I should patch init_texmacs.cc and init_first.cc to get rid of
> this stuff.
>
> In the case of maxima, I see in the texmacs sources, in init_texmacs.cc,
> the following code
>
> string where= concretize (resolve_in_path ("maxima"));
> string s = var_eval_system ("grep 'MAXIMA_DIRECTORY=' " * where);
>
> But the only occurrence of MAXIMA_DIRECTORY in the maxima script is in
> the following interesting paragraph (I am not making this up!). From
> /sw/bin/maxima:
>
> # For some reason TeXmacs sets MAXIMA_DIRECTORY to the empty string,
> # which breaks maxima's internal path logic. This is a workaround.
> if [ -z "$MAXIMA_DIRECTORY" ]; then
> unset MAXIMA_DIRECTORY
> fi
>
> This looks like a case of deep mutual misunderstanding.

Which version of TeXmacs did you try?


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