Use #pragma once instead of #ifndef
Only the public header maintains #ifndef in the header, together with
pragma. The other ones contain only pragma.
As reported by Shawn Landden on systemd mailing list this is compatible
with all major compilers and gcc has this since version 3.3.
diff --git a/tools/kmod.h b/tools/kmod.h
index 8717aec..76a3426 100644
--- a/tools/kmod.h
+++ b/tools/kmod.h
@@ -17,8 +17,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#ifndef _KMOD_MACRO_H_
-#define _KMOD_MACRO_H_
+#pragma once
#include "macro.h"
@@ -36,4 +35,3 @@
extern const struct kmod_cmd kmod_cmd_compat_depmod;
extern const struct kmod_cmd kmod_cmd_list;
-#endif