On Thu, Jul 19, 2012 at 08:15:28AM -0600, Eric Blake wrote:
> On 07/18/2012 07:07 PM, Hu Tao wrote:
> > <...>
> >
> >> +
> >> +# define virAtomicIntGet(atomic) \
> >> + (__extension__ ({ \
> >> + verify (sizeof(*(atomic)) == sizeof(int)); \
> >> + (void) (0 ? *(atomic) ^ *(atomic) : 0); \
> >> + __sync_synchronize (); \
> >> + (int) *(atomic); \
> >> + }))
>
> >
> > The `verify' lines cause building warnings:
> >
> > cc1: warnings being treated as errors
> > util/virobject.c: In function 'virClassNew':
> > util/virobject.c:74:99: error: nested extern declaration of
> > '_gl_verify_function2' [-Wnested-externs]
>
> Which version of gcc?
>
> I'll have to see if I can come up with a solution in upstream gnulib
> that expands verify() in such a way that works with -Wnested-externs.
$ gcc --version
gcc (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)
Copyright (C) 2010 Free Software Foundation, Inc.
This is the gcc shipped with Fedora 14.
--
Thanks,
Hu Tao
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