[sane-devel] libsane.so and HP scanjet 3770

[jouthuis at dds.nl]

Okay,

I'll ask Daniel Tartavel to forward this information to the HP development team.


Citeren Henning Meier-Geinitz <henning at meier-geinitz.de>:

> Hi,
>
> On Sun, Oct 16, 2005 at 06:29:19PM +0200, jouthuis at dds.nl wrote:
> > I recently started using HP scanjet 3770. Picked up the proprietary driver
> from
> > Daniel Tartavel's website. This driver uses an adapted libsane.so.1.0.13.
> > Starting up xsane with a more recent libsane.so results in:
> >
> > xsane: symbol lookup error: /usr/lib/sane/libsane-hp3770.so.1.0.13:
> undefined
> > symbol: sanei_usb_init
>
> Looks like libsane-hp3770.so needs to be linked to sanei_usb.
>
> > I wonder if it wouldn't be possible to incorporate the following
> permanently
> > into the standard sane-code for backends (picked up from Daniel's README
> file):
> >
> > #	[add "sanei_usb.lo" to the "EXTRA" line in backend/Makefile.in:
> > #
> > #diff -e backend/Makefile.in ../sane-backends-1.0.13.hp/backend/Makefile.in
> > #71c]
> >
> > EXTRA = sane_strstatus.lo ../sanei/sanei_init_debug.lo
> ../sanei/sanei_config.lo
> > ../sanei/sanei_usb.lo
>
> This would link every SANE backend to sanei_usb. As most backend don't
> use this file, that wouldn't make sense.
>
> > Otherwise all hp3770 users will be stuck with 1.0.13 forever, or will have
> to
> > adapt and compile new sane-releases themselves time and again, which is
> kind of
> > unpractical when one's using .deb's or .rpm's.
>
> The libsane-hp3770.so must just be linked to all the code it uses
> internally. If it uses sanei_usb, it must be linked to it. It doesn't
> make sense to link the dll backend to sanei_usb. I'm surprised that
> this works anyway.
>
> However, linking sanei_usb to a non-free binary-only library may not
> be allowed due to the GPL+SANE license.
>
> Bye,
>   Henning
>
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