On 01/31/2017 12:43 PM, Michael S. Tsirkin wrote: > Some headers use QEMU_BUILD_BUG_ON. This causes a problem > if the C file including that header happens to have > QEMU_BUILD_BUG_ON at the same line number. > > Fix using a widely available extension: __COUNTER__. > If unavailable, provide a stub.
Uhh, this isn't the right commit message. What happened? > > Signed-off-by: Michael S. Tsirkin <m...@redhat.com> > --- > include/qemu/compiler.h | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h > index 057639a..e0ce9ff 100644 > --- a/include/qemu/compiler.h > +++ b/include/qemu/compiler.h > @@ -97,6 +97,9 @@ > #define QEMU_BUILD_BUG_ON(x) > #endif > > +#define QEMU_BUILD_BUG_ON_ZERO(x) (sizeof(QEMU_BUILD_BUG_ON_STRUCT(x)) - \ > + sizeof(QEMU_BUILD_BUG_ON_STRUCT(x))) > + > #if defined __GNUC__ > # if !QEMU_GNUC_PREREQ(4, 4) > /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */ > -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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