Re: [libvirt] [PATCH 03/13] Rewrite virAtomic APIs using GLib's atomic ops code

<...> > + > +# 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]