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[Qemu-devel] [PATCH] compiler: fix warning with GCC 4.8.0
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH] compiler: fix warning with GCC 4.8.0 |
Date: |
Wed, 27 Mar 2013 14:34:32 +0100 |
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 <address@hidden>
---
include/qemu/compiler.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index 2f7998b..6175c24 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -33,7 +33,7 @@
#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)
--
1.8.1.4
- [Qemu-devel] [PATCH] compiler: fix warning with GCC 4.8.0,
Paolo Bonzini <=