Ensure slab.h is only included once

diff --git a/src/lib/util/slab.h b/src/lib/util/slab.h
index d46f011980ab1ccdf1fa95617aea519ca563c7bb..7b5cefef52e1282363442df2a25b49f8dfd54b4e 100644 (file)
--- a/src/lib/util/slab.h
+++ b/src/lib/util/slab.h
@@ -1,3 +1,4 @@
+#pragma once
 /*
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by