Ok, attaching foo.ggo
and a patch for the resulting cmdline.c (made by gengetopt -i foo.ggo).

It's not really tested - just to see how to go.
I guess within the new pseudo_shortopt* cases we still need to correct the update_arg() call and maybe removing the useless strcmp().


(file #25267, file #25268)

I haven't fixed it in gengetopt but could send you an example how I would fix the gengetopt generated code if this would be useful for you.

If you have long options without corresponding sort opts like this for example:

option "koma" -
"help text koma"
optional

option "komb" -
"help text komb"
optional

then
myprog --ko
does not return an error "option '--f' is ambiguous" like it does if you also specify different shortopts for both --kom* opts.
Instead it just sets koma_given.

The fix would be to use other vals than 0 for such options in
struct option long_options.
For a good example how to do this nicely see ls.c from coreutils how they handle 3 longopts starting with --f.