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-rw-r--r--src/lib/crypto/cksumtypes.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib/crypto/cksumtypes.h b/src/lib/crypto/cksumtypes.h
index 71409d4272..c667e8abe6 100644
--- a/src/lib/crypto/cksumtypes.h
+++ b/src/lib/crypto/cksumtypes.h
@@ -24,6 +24,8 @@
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
+#ifndef CKSUMTYPES_H
+#define CKSUMTYPES_H
#include "k5-int.h"
struct krb5_cksumtypes {
@@ -57,3 +59,4 @@ struct krb5_cksumtypes {
extern const struct krb5_cksumtypes krb5_cksumtypes_list[];
extern const unsigned int krb5_cksumtypes_length;
+#endif