Added some guards.

diff --git a/source/include/asn_1.h b/source/include/asn_1.h
index ae3cd22dde9841466cc714d80d19f93c7f4f02bc..5b264edec34e851c28d7a41b6af239aa4ff152cd 100644 (file)
--- a/source/include/asn_1.h
+++ b/source/include/asn_1.h
@@ -19,6 +19,8 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#ifndef _ASN_1_H
+#define _ASN_1_H
 
 struct nesting {
        off_t start;
@@ -52,3 +54,5 @@ typedef struct {
 #define OID_NTLMSSP "1 3 6 1 4 1 311 2 2 10"
 #define OID_KERBEROS5_OLD "1 2 840 48018 1 2 2"
 #define OID_KERBEROS5 "1 2 840 113554 1 2 2"
+
+#endif /* _ASN_1_H */