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-rw-r--r--src/lib/util/opresolv.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/lib/util/opresolv.h b/src/lib/util/opresolv.h
index 1b1bc692118..52030dc4336 100644
--- a/src/lib/util/opresolv.h
+++ b/src/lib/util/opresolv.h
@@ -38,8 +38,10 @@
****************************************************************************/
-#ifndef __OPRESOLV_H__
-#define __OPRESOLV_H__
+#ifndef MAME_UTIL_OPRESOLV_H
+#define MAME_UTIL_OPRESOLV_H
+
+#pragma once
#include <stdlib.h>
#include <vector>
@@ -271,4 +273,4 @@ private:
} // namespace util
-#endif /* __OPRESOLV_H__ */
+#endif // MAME_UTIL_OPRESOLV_H