Re: [Qemu-devel] [PATCH 8/9] Add more format string warning flags

["Daniel P. Berrange" <berrange@redhat.com>]

On Mon, Apr 02, 2012 at 01:13:56PM +0100, Peter Maydell wrote:
> On 2 April 2012 11:50, Daniel P. Berrange <berrange@redhat.com> wrote:
> > +#if defined __GNUC__
> > +# define GCC_WARNINGS_SAVE      _Pragma("GCC diagnostic push")
> > +# define GCC_WARNINGS_RESTORE   _Pragma("GCC diagnostic pop")
> > +# define DO_PRAGMA(x)           _Pragma(#x)
> > +# define GCC_WARNINGS_IGNORE(x) DO_PRAGMA(GCC diagnostic ignored x)
> > +#else
> > +# define GCC_WARNINGS_SAVE
> > +# define GCC_WARNINGS_RESTORE
> > +# define GCC_WARNINGS_IGNORE(x)
> > +#endif
> 
> Do these pragmas work on all versions of gcc that we support?
> Google suggests that the push/pop ones are only gcc 4.6 or better,
> for example.

Hmm, the gcc info pages didn't mention any version constraints, but I'll
investigate this


Daniel
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