Doc system: Allow building in default target

[libucw.git] / ucw / binheap-node.h

diff --git a/ucw/binheap-node.h b/ucw/binheap-node.h
index 44be9f4e656ab297cf4f8de8b3a9838cdff5f37b..afbda63bc0098117965cc7aa2ca6c286af4dc01e 100644 (file)
--- a/ucw/binheap-node.h
+++ b/ucw/binheap-node.h
@@ -7,6 +7,9 @@
  *     of the GNU Lesser General Public License.
  */
 
+#ifndef _UCW_BINHEAP_NODE_H
+#define _UCW_BINHEAP_NODE_H
+
 struct bh_node {
   struct bh_node *first_son;
   struct bh_node *last_son;
@@ -17,3 +20,5 @@ struct bh_node {
 struct bh_heap {
   struct bh_node root;
 };
+
+#endif