[sane-devel] Canoscan 8400F

[Myroslav Kavatsyuk]

Dear Stef,
The SANE was configured with the proper CFLAGS shell variables:

export CFLAGS="-DUNIT_TESTING=1"
export LDFLAGS="-DUNIT_TESTING=1"
export CPPFLAGS="-DUNIT_TESTING=1"
export BACKENDS=genesys
export PRELOADABLE_BACKENDS=genesys

./configure --prefix=/home/xxx/4_pwork/SANE/local/
I have checked, during the compilation process definition statements were passed to compiler:
/bin/bash ../libtool --silent  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I../include/sane -I/usr/local/include -I. -I. -I../include -I../include -DLIBDIR="/home/xxx/4_pwork/SANE/local/lib/sane" -DBACKEND_NAME=genesys -DUNIT_TESTING=1 -D_REENTRANT -DPATH_SANE_CONFIG_DIR=/home/xxx/4_pwork/SANE/local/etc/sane.d          -DPATH_SANE_DATA_DIR=/home/xxx/4_pwork/SANE/local/share    -DPATH_SANE_LOCK_DIR=/home/xxx/4_pwork/SANE/local/var/lock/sane    -DV_MAJOR=1 -DV_MINOR=0  -DUNIT_TESTING=1 -W -Wall -Wcast-align -Wcast-qual -Wmissing-declarations -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wstrict-prototypes -pedantic -ansi -MT libgenesys_la-genesys_gl843.lo -MD -MP -MF .deps/libgenesys_la-genesys_gl843.Tpo -c -o libgenesys_la-genesys_gl843.lo `test -f 'genesys_gl843.c'
But the resulting library does not make functions public.
Best regards,Myroslav

      From: Stef <stef.dev at free.fr>
 To: Myroslav Kavatsyuk <m.kavatsyuk at yahoo.com>; "sane-devel at lists.alioth.debian.org" <sane-devel at lists.alioth.debian.org> 
 Sent: Thursday, October 30, 2014 9:07 PM
 Subject: Re: Canoscan 8400F
   
 

On 29/10/2014 12:18, Myroslav Kavatsyuk wrote:
  
  Dear Stef, 
  Thanks a lot for a provided example. From your code I have made a program (see attachment) which compiles. However, I can not link it with the libsane-genesys. apparently I miss something. 
  I have compiled SANE libraries as following: > export BACKENDS=genesys > export CFLAGS="-D UNIT_TESTING" > ./configure --prefix=..... 
  The program compiles perfectly as: > gcc -I ./compile/include/ -I ./compile/backend/ -c tst_scan.c 
  But when trying to link against libsane-genesys library gcc complains: > gcc -I ./compile/include/ -I ./compile/backend/ -L ./local/lib/sane/ -l sane-genesys tst_scan.c -o tst_scan    /tmp/cc958m4x.o: In function `sanei_debug_genesys_call':
 tst_scan.c:(.text+0xad): undefined reference to `sanei_debug_msg'
 /tmp/cc958m4x.o: In function `main':
 tst_scan.c:(.text+0xcd): undefined reference to `sanei_init_debug'
 tst_scan.c:(.text+0xe0): undefined reference to `sane_genesys_init'
 tst_scan.c:(.text+0xf3): undefined reference to `sane_strstatus'
 tst_scan.c:(.text+0x120): undefined reference to `sane_genesys_open'
 tst_scan.c:(.text+0x133): undefined reference to `sane_strstatus'
 tst_scan.c:(.text+0x14a): undefined reference to `sane_genesys_exit'
 tst_scan.c:(.text+0x188): undefined reference to `sanei_genesys_compute_dpihw'
 tst_scan.c:(.text+0x2b0): undefined reference to `gl843_init_scan_regs'
 tst_scan.c:(.text+0x2ec): undefined reference to `sane_strstatus'
 tst_scan.c:(.text+0x32c): undefined reference to `gl843_begin_scan'
 tst_scan.c:(.text+0x33f): undefined reference to `sane_strstatus'
 tst_scan.c:(.text+0x3b8): undefined reference to `sanei_genesys_read_data_from_scanner'
 tst_scan.c:(.text+0x3d4): undefined reference to `gl843_end_scan'
 tst_scan.c:(.text+0x3e7): undefined reference to `sane_strstatus'
 tst_scan.c:(.text+0x42b): undefined reference to `sanei_genesys_write_pnm_file'
 tst_scan.c:(.text+0x45b): undefined reference to `sane_genesys_close'
 tst_scan.c:(.text+0x460): undefined reference to `sane_genesys_exit' 
  If I try to use libtool, it complains that I am linking against loadable module
  
  Apparently I am doing something wrong. Please let me know what is the proper way of compiling a  unit testing program. 
  Thanks a lot, Myroslav
   
      
     Hello,
 
     is the libsane-genesys also built with -DUNIT_TESTING ? These private symbols aren't made public until UNIT_TESTING is defined.
 
 Regards,
     Stef
 

  
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