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Date: Thu, 19 Feb 2015 15:16:16 +0100
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Xenomai] Compiling issue Xenomai 3.0 rc3
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To: Michael Smith <2michael.smith@gmail.com>, xenomai@xenomai.org

On 02/19/2015 02:40 PM, Michael Smith wrote:
> Hi. I'm having trouble compiling the newest release (Xenomai 3.0-rc3).
> With the error
> 
> autotune.c: In function ‘main’:
> autotune.c:298:16: error: ignoring return value of ‘daemon’, declared with
> attribute warn_unused_result [-Werror=unused-result]
>           daemon(0, 0);
> 
> Is there an way to override the -Werror flags so it doesn't break on
> warnings without editing the make files?
> Or is the policy on Xenomai to always compile cleanly without warnings.

There is a strong policy to always compile without any warning. It
turned out that none of the libc headers I'm building against over 7 CPU
architectures sets the warn_unused_result attribute on the daemon()
routine yet.

-- 
Philippe.