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-rw-r--r--compiler.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler.h b/compiler.h
index a1c0794947..736e77075a 100644
--- a/compiler.h
+++ b/compiler.h
@@ -30,8 +30,10 @@
# define QEMU_PACKED __attribute__((packed))
#endif
+#define cat(x,y) x ## y
+#define cat2(x,y) cat(x,y)
#define QEMU_BUILD_BUG_ON(x) \
- typedef char qemu_build_bug_on__##__LINE__[(x)?-1:1];
+ typedef char cat2(qemu_build_bug_on__,__LINE__)[(x)?-1:1];
#if defined __GNUC__
# if !QEMU_GNUC_PREREQ(4, 4)