Armor pq_compat.h header file against multiple inclusion

Submitted by: Alex Chen <alex_chen@filemaker.com>

diff --git a/crypto/pqueue/pq_compat.h b/crypto/pqueue/pq_compat.h
index fd365788822cadd060f1471e37b4893004ffcf13..7b2c32725cd00fa9473231c50d079f5bc956cbef 100644 (file)
--- a/crypto/pqueue/pq_compat.h
+++ b/crypto/pqueue/pq_compat.h
@@ -57,6 +57,9 @@
  *
  */
 
+#ifndef HEADER_PQ_COMPAT_H
+#define HEADER_PQ_COMPAT_H
+
 #include <openssl/opensslconf.h>
 #include <openssl/bn.h>
 
@@ -145,3 +148,5 @@
                                               *(x) |= mask; \
                                           } while(0)
 #endif /* OPENSSL_SYS_VMS */
+
+#endif