From f3245d63a0df51184fdf12f483436329ef322d35 Mon Sep 17 00:00:00 2001
From: "Emilio G. Cota" <cota@braap.org>
Date: Fri, 13 Oct 2017 17:30:20 -0400
Subject: [PATCH] futex: add missing header guards
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The header file was introduced by fbcc3e5 ("qemu-thread: optimize QemuLockCnt
with futexes on Linux", 2017-01-16) without header guards. Add them.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
 include/qemu/futex.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/qemu/futex.h b/include/qemu/futex.h
index bb7dc9e296..91ae88966e 100644
--- a/include/qemu/futex.h
+++ b/include/qemu/futex.h
@@ -11,6 +11,9 @@
  *
  */
 
+#ifndef QEMU_FUTEX_H
+#define QEMU_FUTEX_H
+
 #include <sys/syscall.h>
 #include <linux/futex.h>
 
@@ -34,3 +37,5 @@ static inline void qemu_futex_wait(void *f, unsigned val)
         }
     }
 }
+
+#endif /* QEMU_FUTEX_H */