linux-kernel - [PATCH 02/42] tools/nolibc: guard the main file against multiple inclusion

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Date:   Mon,  7 Feb 2022 17:23:14 +0100
From:   Willy Tarreau <w@....eu>
To:     "Paul E . McKenney" <paulmck@...nel.org>
Cc:     Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
        Willy Tarreau <w@....eu>
Subject: [PATCH 02/42] tools/nolibc: guard the main file against multiple inclusion

Including nolibc.h multiple times results in build errors due to multiple
definitions. Let's add a guard against multiple inclusions.

Signed-off-by: Willy Tarreau <w@....eu>
---
 tools/include/nolibc/nolibc.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index ad23712f9cb5..4660637d9b17 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -80,6 +80,8 @@
  *      https://w3challs.com/syscalls/
  *
  */
+#ifndef _NOLIBC_H
+#define _NOLIBC_H
 
 #include <asm/unistd.h>
 #include <asm/ioctls.h>
@@ -2582,3 +2584,5 @@ dev_t makedev(unsigned int major, unsigned int minor)
 {
 	return ((major & 0xfff) << 8) | (minor & 0xff);
 }
+
+#endif /* _NOLIBC_H */
-- 
2.35.1