--- orig/parmetis-4.0.3/metis/include/metis.h	2019-01-15 12:40:31.050842343 +0100
+++ parmetis-4.0.3/metis/include/metis.h	2019-01-15 12:43:01.883662756 +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
 
 
 /*--------------------------------------------------------------------------