Ignoring flags in the command line

Hi all,

I am trying to use gengetopt in my project and so far it's great but the following issue came up :
We have several plug-ins that should use the same command line, but each has different options. I want to be able to use ggo in each of them but let it ignore options it does not recognize (since they should probably be parsed by a different plug-in).

So what I need is to be able to do something like this :
legal flags :
-a <value>
-b

Command line :
<exe> -b -c -a 7

and I want to get a=7, b=true without any errors because of the "-c".

I'll be gald to head any ideas on how to do it.

Thanks,
Rina