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Re: [Qemu-trivial] [Qemu-devel] [PATCH] configure: fix ALSA configure te

From: Blue Swirl
Subject: Re: [Qemu-trivial] [Qemu-devel] [PATCH] configure: fix ALSA configure test
Date: Mon, 23 Jul 2012 17:40:04 +0000

On Tue, Jul 17, 2012 at 7:28 PM, Peter Maydell <address@hidden> wrote:
> On 17 July 2012 20:24, Stefan Weil <address@hidden> wrote:
>> The arguments why -Werror is a bad idea for some configure tests
>> are reasonable.
>> Nevertheless the QEMU community was able to produce thousands of
>> lines of code which compile without a warning, so we should be able
>> to create warning and error free code for a handful of configure
>> tests.
> The trouble is that the warnings and errors here don't cause the
> build to fail noisily; that's a big distinction IMHO.
> I suppose we could make compile_prog do something like:
>  * run the compile test

Unfortunately that would break cross compiling.

>  * if it fails => test failure as now
>  * if it succeeds (and we're doing a Werror build at all),
>    rerun the same test with -Werror
>  * if that fails, abort configure with an error message
> Then we would have the same "make the problem obvious" effect
> that plain -Werror provides for our main compilation.
>> The 4 patches above are valid and can be applied with or without
>> -Werror, therefore qemu-trivial or whoever does not have to wait for
>> Peter's patch.
> Yes, I agree we might as well fix these errors since we've now
> noticed them, regardless of whether or not we apply my patch
> (which I've just sent).
> -- PMM

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