git: Add -Werror to the kernel build.

Aggelos Economopoulos aoiko at
Tue Dec 15 15:31:07 PST 2009

Joel K. Pettersson wrote:
> On Tue, Dec 15, 2009 at 2:52 PM, Sascha Wildner
> <swildner at> wrote:
>> commit 40ec0564adaa677a0dab5299bdd491a2245e94a0
>> Author: Sascha Wildner <saw at>
>> Date:   Tue Dec 15 15:52:07 2009 +0100
>>    Add -Werror to the kernel build.
>> [...]
> I'd guess the following is probably related to this. Anyhow:
> A user following the development changes of DragonFly, I noted that
> building the kernel now errors out due to warnings of unused variables
> - the ones in question being used only by debug code (KKASSERT, etc.),
> and my kernel config disabling debug options.

I don't think that's the proper way to deal with variables that are only
used in debug statements.

We should add something like this:

#define __debug_var __attribute__((unused))
#define __debug_var

and then use

int a __debug_var;

for such variables.


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