Re: GCC 6 -Wnonnull is too aggressive

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On 17.2.2016 19:20, Ralf Corsepius wrote:
> On 02/17/2016 06:51 PM, Jan Kratochvil wrote:
>> On Wed, 17 Feb 2016 18:25:29 +0100, Ralf Corsepius wrote:
>>> Remove -Werror.
>> [...]
>>> -Werror is useful to devs when actively working on code, but using it in
>>> released production code to be used in packages is plain st***.
>>
>> -Werror has found me many times bugs in Fedora add-on patches not being
> You are developing with upstream and are using Fedora a test bed.
> 
> This is unlike the situation many packages are in.
> For these, all -Werror does is to raise in most case negligible warnings to
> errors and to causes FTBFS for negligible reasons, such indentation, unused
> vars or other stylishness.
> 
> This shows especially in situations like now, when gcc received a major update
> starts to raise _warnings_ for a new set of issues, and -Werror enabled are
> going to FTBFS in masses.
> 
> In other words: WARNINGS are warnings and not errors for a reason.

In this case the warning which was turned into error saved us asses because
the code would behave differently under too aggressive optimizations.

It is not black-white question.

-- 
Petr Spacek  @  Red Hat
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