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-rw-r--r--include/types.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/types.h b/include/types.h
index bd4bd05d..ebc561f7 100644
--- a/include/types.h
+++ b/include/types.h
@@ -120,9 +120,13 @@ typedef int64_t s64;
 #define likely(_x) (_x)
 #define unlikely(_x) (_x)
 #else
+#ifndef likely
 #define likely(_x) __builtin_expect(!!(_x), 1)
+#endif
+#ifndef unlikely
 #define unlikely(_x) __builtin_expect(!!(_x), 0)
 #endif
+#endif
 
 #endif                                                   /* ! _HAVE_TYPES_H */