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