--- include/metis.orig.h	2013-03-11 20:50:00.000000000 +0100
+++ include/metis.h	2013-03-16 12:14:59.117329640 +0100
@@ -30,7 +30,7 @@
  GCC does provides these definitions in stdint.h, but it may require some
  modifications on other architectures.
 --------------------------------------------------------------------------*/
-#define IDXTYPEWIDTH 32
+#define IDXTYPEWIDTH 64
 
 
 /*--------------------------------------------------------------------------