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-rw-r--r--lib/cdefs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/cdefs.h b/lib/cdefs.h
index 2158379554..b034c0bdfd 100644
--- a/lib/cdefs.h
+++ b/lib/cdefs.h
@@ -401,7 +401,7 @@
# endif
#endif
-#if __GNUC__ >= 3
+#if (__GNUC__ >= 3) || (__clang_major__ >= 4)
# define __glibc_unlikely(cond) __builtin_expect ((cond), 0)
# define __glibc_likely(cond) __builtin_expect ((cond), 1)
#else