GCC 4.8.0 introduces a new warning:
block/qcow2-snapshot.c: In function 'qcow2_write_snapshots’:
block/qcow2-snapshot.c:252:18: error: typedef 'qemu_build_bug_on__253'
locally defined but not used [-Werror=unused-local-typedefs]
QEMU_BUILD_BUG_ON(offsetof(QCowHeader, snapshots_offset) !=
^
cc1: all warnings being treated as errors
(Caret diagnostics aren't perfect yet with macros... :)) Work around it
with __attribute__((unused)).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id:
1364391272-1128-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit
99835e00849369bab726a4dc4ceed1f6f9ed967c)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
#define cat(x,y) x ## y
#define cat2(x,y) cat(x,y)
#define QEMU_BUILD_BUG_ON(x) \
- typedef char cat2(qemu_build_bug_on__,__LINE__)[(x)?-1:1];
+ typedef char cat2(qemu_build_bug_on__,__LINE__)[(x)?-1:1] __attribute__((unused));
#if defined __GNUC__
# if !QEMU_GNUC_PREREQ(4, 4)