Hi,
Sorry for the top post!
Here's an update on my progress. I've managed to get a build but there seem
to be some runtime linking issues.
I've included the lib/getopt.c and lib/getopt1.c code with #include
directives in frontend/scanimage.c, frontend/saned.c and tools/sane-desc.c.
This has allowed me to produce a build that completes without error.
However, when I run the resulting execuables they do not work.
scanimage bombs out immediately. saned bombs out when scanimage connects to
it across the network.
Both give an error similar to this:
-----
scanimage: rld: Fatal Error: attempted access to unresolvable symbol in
.../libsane.so.1: sane_dll_init
-----
If I configure with --disable-shared --enable-static and rebuild then the
build fails with the same symbols being unresolvable.
Grepping the source reveals that sane_dll_init does not appear anywhere
either as a declaration or a reference.
Does anyone know what's going on here?
I have an HP ScanJet 7400c that has dual USB1 and SCSI
interfaces. When I use the USB1 interface on my modern Linux
system it overruns the buffer several times on each page. This
causes the scanner to stop, reposition itself and carry on. This
is really slow.
I am trying to work out whether the scanner's SCSI bus has
enough bandwidth to complete the scan without overflowing the
buffer. The only machine I currently have with SCSI is an SGI O2
running IRIX. I have a binary copy of 1.0.19 for this machine
and I've managed to rebuild working binaries from the 1.0.19
source with the toolchain that I'm using
1.0.19 doesn't seem to work with the 7400c. The avision backend
gets stuck in wait_4_lamp and eventually gives up after 90
tries. During this time the lamp is actually on! In the git tree
I can see a later patch for 'avision.c: Recognize "backlight on"
status' and quite a lot of other fixes which are probably worth
having.
Therefore, I'm trying to build the latest git on IRIX 6.5.30
with MIPSpro 7.4.4 and gmake. This platform has an ancient
libpng and doesn't have GNU getopt_long. At least MIPSpro 7.4.4
supports c99!
I end up with this in include/sane/config.h after configure:
-----
#define HAVE_GETOPT_H 1
...
/* 'undef HAVE_GETOPT_LONG */
...
#define HAVE_LIBPNG 1
-----
I can stop it trying to compile against the PNG headers by
removing HAVE_LIBPNG by hand before running gmake. Is there
something I can pass to configure that will do that
automatically?
The getopt problem is more difficult. frontend/scanimage.c does
not try to link against the code from lib/getopt.c or
lib/getopt1.c and when I go into the lib/ directory the code
does not even appear to have been built.
Is there a way I can force the configuration to build and link
against the sane-backends supplied getopt code?
I've tried moving /usr/include/getopt.h aside but then
configure fails when testing whether the C compiler can produce
executables so I really need a way to change the sane-backends
tree to do it.
Thanks for any help you can offer!
Regards,
@ndy
--
Regards,
@ndy
--
andy...@ashurst.eu.org
http://www.ashurst.eu.org/
0x7EBA75FF
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