[Bug default/28976] Optionally ignore SONAME when comparing libraries

["woodard at redhat dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=28976

--- Comment #3 from Ben Woodard <woodard at redhat dot com> ---
(In reply to Matthias Maennich from comment #2)
> The hunk
> 
> +  if(ctxt->show_soname_change())
> +    r->priv_->sonames_equal_ = f->get_soname() == s->get_soname();
> +  else
> +    r->priv_->sonames_equal_ = true;
> 
> can be written as
> 
> + r->priv_->sonames_equal_ = ! ctxt->show_soname_change() 
>                             || f->get_soname() == s->get_soname();

That is clever. It might just be me but I find my version easier to read and I
doubt with optimization that the resulting machine code is going to be much
different. We should only be passing through this code once per execution and
so even if it isn't -- oh well.

I also considered:

r->priv_->sonames_equal_ = ctxt->show_soname_change() ? f->get_soname() ==
s->get_soname() : true;

and yours is a more compact form of that.

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