--- src/jni.h.orig	Sun Sep  4 20:02:52 2005
+++ src/jni.h	Mon Jan  2 14:32:57 2006
@@ -18,6 +18,9 @@
  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
+#ifndef _JAMVM_JNI_H_
+#define _JAMVM_JNI_H_
+
 #include <stdio.h>
 #include <stdarg.h>
 
@@ -338,3 +341,5 @@ struct _JNIInvokeInterface {
 #undef GET_STATIC_FIELD
 #undef SET_STATIC_FIELD
 #undef FIELD_OP
+
+#endif
