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