Adds a #GOptionGroup to the @context, so that parsing with @context
will recognize the options in the group. Note that the group will
be freed together with the context when g_option_context_free() is
called, so you must not free the group yourself after adding it
to a context.
Adds a #GOptionGroup to the @context, so that parsing with @context will recognize the options in the group. Note that the group will be freed together with the context when g_option_context_free() is called, so you must not free the group yourself after adding it to a context.