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Diffstat (limited to 'lib/Headers/rdseedintrin.h')
-rw-r--r--lib/Headers/rdseedintrin.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Headers/rdseedintrin.h b/lib/Headers/rdseedintrin.h
index 54aabd177a1d..0fef1fa49680 100644
--- a/lib/Headers/rdseedintrin.h
+++ b/lib/Headers/rdseedintrin.h
@@ -25,6 +25,9 @@
#error "Never use <rdseedintrin.h> directly; include <x86intrin.h> instead."
#endif
+#ifndef __RDSEEDINTRIN_H
+#define __RDSEEDINTRIN_H
+
#ifdef __RDSEED__
static __inline__ int __attribute__((__always_inline__, __nodebug__))
_rdseed16_step(unsigned short *__p)
@@ -46,3 +49,4 @@ _rdseed64_step(unsigned long long *__p)
}
#endif
#endif /* __RDSEED__ */
+#endif /* __RDSEEDINTRIN_H */