[kvm-unit-tests PATCH 2/2] add header guards for non-trivial headers

[Cornelia Huck <cohuck@redhat.com>]

Add header guards to headers that do not simply include another one.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
 lib/argv.h       | 5 +++++
 lib/arm/io.h     | 5 +++++
 lib/powerpc/io.h | 5 +++++
 3 files changed, 15 insertions(+)

diff --git a/lib/argv.h b/lib/argv.h
index e5fcf8482ca8..1fd746dc2177 100644
--- a/lib/argv.h
+++ b/lib/argv.h
@@ -5,7 +5,12 @@
  * under the terms of the GNU Library General Public License version 2.
  */
 
+#ifndef _ARGV_H_
+#define _ARGV_H_
+
 extern void __setup_args(void);
 extern void setup_args_progname(const char *args);
 extern void setup_env(char *env, int size);
 extern void add_setup_arg(const char *arg);
+
+#endif
diff --git a/lib/arm/io.h b/lib/arm/io.h
index 2746d72e8280..183479c899a9 100644
--- a/lib/arm/io.h
+++ b/lib/arm/io.h
@@ -4,4 +4,9 @@
  * This work is licensed under the terms of the GNU GPL, version 2.
  */
 
+#ifndef _ARM_IO_H_
+#define _ARM_IO_H_
+
 extern void io_init(void);
+
+#endif
diff --git a/lib/powerpc/io.h b/lib/powerpc/io.h
index 1f5a7bd6d745..d4f21ba15a54 100644
--- a/lib/powerpc/io.h
+++ b/lib/powerpc/io.h
@@ -4,5 +4,10 @@
  * This work is licensed under the terms of the GNU GPL, version 2.
  */
 
+#ifndef _POWERPC_IO_H_
+#define _POWERPC_IO_H_
+
 extern void io_init(void);
 extern void putchar(int c);
+
+#endif
-- 
2.31.1