On Mon, Mar 22, 2021 at 07:36:25PM +0100, Ralf Hemmecke wrote:
> > make -f pics.mk pics
> > make[2]: Entering directory '/home/wspage/fricas-build/src/doc'
> > convert ugNewIntroGraphicsPage1.VIEW/image.xpm bessintr.ps
> > convert-im6.q16hdri: not authorized `bessintr.ps' @
> > error/constitute.c/WriteImage/1037.
> > pics.mk:3: recipe for target 'bessintr.ps' failed
> > ...
>
> > This is due to an apparently well known change to ImageMagick to
> > prevent creation of postscript files and some other things by default.
> > Do you know if there is an alternative to 'convert' for this
> > conversion that would avoid having to change the security options?
>
> Oh... yes. Sure if we want users/developers to create the documentation
> themselves, that must eventually be changed.
>
> Unfortunately, I don't know any good replacement for ImageMagick. And I
> haven't yet found an option that I could give on the "convert"
> commandline to just ignore this problem with "not authorized".
> In fact, it's a bit strange. How useful can ImageMagick be if one needs
> root access to change
>
> - <policy domain="coder" rights="none" pattern="PS" />
> + <policy domain="coder" rights="read|write" pattern="PS" />
>
> in /etc/ImageMagick/policy.xml in order to create .ps files.
>
> Any suggestion?
Our graphics routines can create Postscript. ATM you need
access to X server for this, but you also need access to
X server to create .xpm, so this really is not extra requirement.
In fact, one useful potential contribution from C programmer
would be to eliminate need for .xpm files. Namely our graphics
should be able to work with just .data files, and for export
Postscript is probably more useful (and if somebody really
want .xpm, they can be created on demand).
But if C programmer goes first to improve style of C files
(which admitedly is bad), then it could be long time before
we see usability improvement...
--
Waldek Hebisch
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