X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=include%2Fprt-ext.h;h=d55ff5c034f3d719726049feed59afb44605818e;hb=a9a2a0427e8c387265ae6cccd16d97df6585e7ff;hp=d7f2ddf1ed7157059b2af46b1843731c94b3f23e;hpb=602ffff9bb22a27dc020630a884c101ad09e1990;p=yaz-moved-to-github.git

diff --git a/include/prt-ext.h b/include/prt-ext.h
index d7f2ddf..d55ff5c 100644
--- a/include/prt-ext.h
+++ b/include/prt-ext.h
@@ -29,6 +29,11 @@
  * Biased-choice External for Z39.50.
  */
 
+#ifndef PRT_EXT_H
+#define PRT_EXT_H
+
+#include <yconfig.h>
+
 struct Z_External
 {
     Odr_oid *direct_reference;
@@ -73,3 +78,5 @@ struct Z_External
 };
 
 int z_External(ODR o, Z_External **p, int opt);
+
+#endif