[sane-devel] scanimage problem / sane 1.0.8 / Epson / Solaris 8 (x86)

[Kip Iles]

I too had some issues getting all the SANE pieces to compile and find all 
the libraries under Solaris 8 (Sparc) using gcc 3.1. I Installed GIMP and 
image libraries from Sun's companion CD into /opt/sfw and wanted everything 
SANE to live there too. I also wanted the pnm backend and GIMP plugins ...

Sane Backend ...
./configure --prefix=/opt/sfw --enable-pnm-backend

Sane Frontend ...
CPPFLAGS="-I/opt/sfw/include" LDFLAGS="-L/opt/sfw/lib" ./configure 
--prefix=/opt/sfw

Xsane ...
CPPFLAGS="-I/opt/sfw/include" LDFLAGS="-L/opt/sfw/lib" ./configure 
--prefix=/opt/sfw

There may have been an easier way to do this but this gave me the results I 
desired.

Kipland Iles

>From: Henning Meier-Geinitz <henning at meier-geinitz.de>
>To: sane-devel at mostang.com
>Subject: Re: [sane-devel] scanimage problem / sane 1.0.8 / Epson / Solaris 
>8 (x86)
>Date: Thu, 27 Jun 2002 18:40:44 +0200
>
>Hi,
>
>On Thu, Jun 27, 2002 at 04:12:52PM +0100, Ed Randall wrote:
> > One thing that was immediately apparent by setting
> > SANE_DEBUG_SANEI_SCSI=255 was that it was looking for devices other
> > than my Epson scanner,
>
>That's expected behaviour. If you also enable SANE_DEBUG_DLL=255, you
>can see which backend is currently active.
>
> > the first it tried was /dev/camera...
>
>That should be ok. It's used by the dmc backend as a link to the
>actual SCSI camera. Is this file used for anything else on Solaris?
>
> > a
> > bit more investigation led me to edit dll.conf and comment out
> > all those extra devices that are enabled by default.
>
>That's usually a good idea to avoid running into bugs of other
>backends. Currently I don't know of such a bug, however.
>
> > This didn't fix the problem(s) though, in to the bargain I started
> > getting very frequent SIGSEGV's.
>
>Removing backends from dll.conf resulted in segfaults? That's
>interesting :-)
>
> > I made some debugging code changes to epson.c (see "diff -c" patch
> > output below) to debug data buffers in a controlled-length hex dump
> > instead of 1 byte per line.  There was some code already there to
> > do that true, but
> > (a) it didn't do it exactly the way I needed, and was slightly
> > complicated, I couldn't see immediately exactly what it was doing, and
> > (b) it needed to be in a function so I could use it from a couple
> > of places.  You could hopefully move it out into a more general
> > file and use it elsewhere now.
>
>Yes, maybe similar can be added to the sanei_debug stuff. However, be
>careful not to use printf/fprintf directly because you never know, if
>you are on a network connection (running saned).
>
> > I think there's a lot of non-intrusive interaction going on between
> > the various backends that are enabled by default, the initial default
> > installation maybe needs to be a bit more careful on the settings for
> > the sake of naive lazy users who just want to scan and not be
> > software configuration experts ;-)
>
>Generally, all SCSI backends send a SCSI inquiry command to the
>devices they check. That's either /dev/scanner or any device manually
>configured. This shouln't harm any device. And the advantage is, you
>don't need to be software configuration experts and only set one link
>(/dev/scanner).
>
>It would be even easier if there was a way to search for a specific
>SCSI device on Solaris. Then the "scsi ..." directives in the config
>files wouldn't only work on Linux (and BSD?) and the user wouldn't
>even have to set the link.
>
>If there is any problem with a backend's autodection on Solaris, feel
>free to comment on it.
>
> > A couple of side issues I encountered during installation - the
> > sane-config script that gets installed is no longer compatible with
> > the ./configure in xsane 0.86, lots of usage messages pop up.
>
>Hm? This doesn't happen here (with Linux). Can you investigate, what's
>the problem? As far as I know, sane-config.in hasn't been changed
>significantly.
>
> > Also it uses "echo -e $usage" in
> > lots of places, this may work on Linux/Bash but it is not portable 
>/bin/sh
> > behaviour for the Solaris nor the rest of the Unix world ;-)
>
>That's probably true. I'm not quite sure why this hasn't occured when
>I testest *BSD, Solaris, AIX etc. Maybe I never tried the usage output.
>
> > Anybody who has tried installing gtk, glib and sane in a non-standard
> > place (ie not /usr/local/bin) as I have will probably agree with me that
> > the ./configure process for dependant applications has now become much 
>harder.
>
>You mean "since the XXX-config scripts exist"? That's wuite a long
>time :-)
>
> > Whilst the XXX-config script is intended to report back locations of 
>critical
> > parts, the ./configure seems unable to do the right thing - it can't 
>find the
> > XXX-config script unless I put it on the path (DESPITE having a separate
> > --with-XXX=path-to-XXX-config option TELLING it exactly where to look) 
>and
> > even then I find myself having to set LD_LIBRARY_PATH, LDFLAGS, CFLAGS 
>and
> > CPPFLAGS variables to help it along - this shouldn't be necessary.
>
>Maybe it's easier to set GTK_CONFIG to the path to gtk-config? That's
>the only thing I ever did to get xscanimage working on some non-linux
>platforms. An why don't put the XXX-config file into the path?
>
> > Perhaps Linux people don't have this trouble - but if all the world is 
>to run
> > Linux, why bother with ./configure ? :-)))
>
>Even Linux is different :-). E.g. not every library is everywhere. But
>SANE is definitely not Linux-only, I test at least compilation with
>FreeBSD, NetBSD, OpenBSD, Solaris, Irix and AIX. However, most of
>these systems don't have scanners and some don't have gtk and/or gimp
>so testing isn't complete.
>
> > Do you need contributors?
>
>Absolutely!
>
> > When I get more time maybe I'll take a look
> > at joining in and trying to help fix some of these issues.
>
>That appreciated very much.
>
>Bye,
>   henning
>_______________________________________________
>Sane-devel mailing list
>Sane-devel at www.mostang.com
>http://www.mostang.com/mailman/listinfo/sane-devel




_________________________________________________________________
Send and receive Hotmail on your mobile device: http://mobile.msn.com