Re: Linking to ImageMagick by default

[Joseph Garvin <k04jg02@gmail.com>]

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What does Mozilla use for Firefox? They should have an even more serious
security outlook.

On Wed, Dec 19, 2018, 10:36 AM Eli Zaretskii <eliz@gnu.org wrote:

> > Date: Wed, 19 Dec 2018 16:03:08 +0000
> > From: Alan Third <alan@idiocy.org>
> >
> > I want to strip out the properties that I’m going to use at display
> > time, so that I can use the same cached image for different output
> > sizes, while leaving other properties that I don’t know about in
> > place. So I’d like to store the above as
> >
> >     '(image :file "image.png" :format png)
> >
> > however I’m not sure how to go about filtering the list in C. I tried
> > a few variations on this, but they all seg fault
> >
> > static Lisp_Object
> > get_cache_spec (Lisp_Object spec)
> > {
> >   Lisp_Object cache_spec, tail;
> >
> >   cache_spec = Qnil;
> >
> >   for (tail = XCDR (spec);
> >        CONSP (tail) && CONSP (XCDR (tail));
> >        tail = XCDR (XCDR (tail)))
> >     {
> >       if (!EQ (XCAR (tail), Qwidth)
> >           && !EQ (XCAR (tail), QCheight)
> >           && !EQ (XCAR (tail), QCmax_width)
> >           && !EQ (XCAR (tail), QCmax_height)
> >           && !EQ (XCAR (tail), QCscale)
> >           && !EQ (XCAR (tail), QCmargin)
> >           && !EQ (XCAR (tail), QCascent)
> >           && !EQ (XCAR (tail), QCrelief))
> >         cache_spec = list3 (XCAR (tail), XCAR (XCDR (tail)), cache_spec);
> >     }
> >   cache_spec = list2 (XCAR (spec), cache_spec);
>
> I think you should use Fcons instead of list3 or list2.
>
>

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