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Re: [Qemu-devel] [PATCH] clang: Disable warning about expansion to 'defi
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH] clang: Disable warning about expansion to 'defined' |
Date: |
Tue, 9 Aug 2016 09:17:15 +0100 |
On 9 August 2016 at 09:15, Paolo Bonzini <address@hidden> wrote:
>
>
> On 09/08/2016 10:09, Peter Maydell wrote:
>> Is this the only thing in our code which provokes the warning?
>> If so, why don't we just fix it to not be undefined behaviour?
>
> Indeed that was my first suggestion yesterday. However, we use -Wundef
> (a good idea, I think), and fixing it would cause the -Wundef warning to
> appear instead.
Why would
#if !defined(SPICE_SERVER_VERSION) || (SPICE_SERVER_VERSION < 0xc06)
#define SPICE_NEEDS_SET_MM_TIME 1
#else
#define SPICE_NEEDS_SET_MM_TIME 0
#endif
provoke a Wundef warning?
thanks
-- PMM