--- old/src/cpu/zero/vm/jni_zero.h	2013-05-01 16:28:19.443539897 -0400
+++ new/src/cpu/zero/vm/jni_zero.h	2013-05-01 16:28:19.291538468 -0400
@@ -25,7 +25,10 @@
  */
 
 
-#if defined(__GNUC__) && (__GNUC__ >= 4)
+#ifndef __has_attribute
+  #define __has_attribute(x) 0
+#endif
+#if (defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4) && (__GNUC_MINOR__ > 2))) || __has_attribute(visibility)
   #define JNIEXPORT     __attribute__((visibility("default")))
   #define JNIIMPORT     __attribute__((visibility("default")))
 #else