[sane-devel] why my backend don't work?

[zhu]

Dear friend:

    I come to the mail list today,I eagerly hope you would help me.

    I want to try a new backend which main file is m1200.c.  Other files are m1200.h,m1200.conf,mscan.c and mscan.h.

    I did as followed:
    (1)Modified the backend/Makefile.in, added "m1200" in the list following "PRELOADABLE_BACKENDS = " ;
    (2)Added "m1200.c m1200.conf m1200.h mscan.c mscan.h" in the list following "DISTFILES = " ;
    (3)Added "libsane-m1200.la: ../sanei/sanei_config2.lo","libsane-m1200.la: ../sanei/sanei_constrain_value.lo"
    (4)modified the "dll.conf",added "m1200"
    (5)make uninstall    
    (6)execute sane-backends-1.0.8/configure
    (7)make (no error)
    (8)make install (no error)

    My problem is ,when I type "scanimage -L",it says error ,error info is:

    scanimage:error while loading the shared libraries: /usr/local/lib/sane/libsane-m1200.so.1:undefined symbol: funcname

    This "funcname" is a function declared in file mscan.h and defined in mscan.c,and called in the function "sane_init". In the file m1200.c ,I've not forgotten include the head file "mscan.h".

    Dear friend,please tell me if you know why the problem happen ! 

    Thank you very much!




Good Luck!

Sincerely
Jason
2002-7-10
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