[PATCH] PR28901 -Wunused-variable ignores unused const initialised variables

Bernd Schmidt bernds_cb1@t-online.de
Thu Sep 17 16:27:00 GMT 2015


On 09/17/2015 02:01 PM, Gerald Pfeifer wrote:
> On Sun, 13 Sep 2015, Mark Wielaard wrote:
>> Slightly adjusted patch attached. Now it is explicit that the warning is
>> enabled by -Wunused-variable for C, but not C++. There are testcases for
>> both C and C++ to check the defaults. And the hardcoded override is
>> removed for C++, so the user could enable it if they want.
>
> I believe making -Wunused-const-variable part of -Wall is not
> a good idea.
>
> For example, I have a nightly build of Wine with a nightly build
> of GCC.  And my notifaction mail went from twently lines of warning
> to 6500 -- all coming from header files.

What does it warn about, do the warnings look valid?


Bernd



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