Re: [PATCH] Avoid one "parameter unused" warnings.

[Michal Privoznik]

On 01/01/2018 10:53 AM, Paul Eggert wrote:
> Thanks, but -Wunused-parameter issues so many false alarms that I think
> I'd rather just ask people to compile with -Wno-unused-parameter. That's
> what coreutils does, and Emacs, and so forth.

Can you elaborate on this please? I'm failing to see why this would be a
false positive. Despite this function being inlined, compiler might
decide to not inline it and thus treat it as any other function in which
case the variable is unused indeed.

> 
> By the way, this thread duplicates one of a couple of days ago, starting
> here:
> 
> http://lists.gnu.org/archive/html/bug-gnulib/2017-12/msg00077.html

Ah, haven't noticed, sorry.

> 
> Is there some new project using Gnulib that is causing these new
> messages? If so, perhaps I should propose a patch to it to pacify GCC
> without having to pollute the code with void no-op casts.

Yes, libvirt. However, libvirt's no newbie to gnulib. We've used it for
ages.

Michal