[sane-devel] scanimage does not recognize basic long options

[Karl Weber]

Hi,

I downloaded the source code tar ball sane-backends-1.1.1.360-573ca.tar.gz and 
built sane simply with

./configure
make
make install

When I execute scanimage, it does not recognize basic long options. I get the 
error messages like

scanimage: unrecognized option '--format=jpeg'

Always for the first basic long option on the command line. scanimage does, 
however, recognize scanner specific long options like

--resolution 200

My environment is a linux box (openSUSE 15.3) and from what I gather, the 
functions in lib/getopt.c are not used. I would guess, that it is used from 
libc. On my box it is /lib64/libc.so.6

Could you please give me some advice about what might have gone wrong?

Thanks in advance,
Karl