bug#18014: 24.3; Unused Lexical argument warning, when argument is used in a function...

[Eli Zaretskii]

> Date: Mon, 14 Jul 2014 10:47:10 -0500
> From: Matthew Fidler <matthew.fidler@gmail.com>
> Cc: 18014@debbugs.gnu.org
> 
> Also 24.3 does not exit when the warning occurs (which is another bug,
> actually)

That's not a bug, that's the intended behavior: warnings don't stop
compilation.