--- src/jni.h.orig	Sun Jun  5 16:57:53 2005
+++ src/jni.h	Wed Sep  7 19:25:03 2005
@@ -18,6 +18,9 @@
  * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#ifndef _JAMVM_JNI_H_
+#define _JAMVM_JNI_H_
+
 #include <stdio.h>
 #include <stdarg.h>
 
@@ -338,3 +341,5 @@
 #undef GET_STATIC_FIELD
 #undef SET_STATIC_FIELD
 #undef FIELD_OP
+
+#endif
