$FreeBSD: head/math/spooles/files/patch-I2Ohash-large-input 340725 2014-01-22 17:40:44Z mat $
--- I2Ohash/src/util.c	1998-05-31 07:45:12.000000000 +0900
+++ I2Ohash/src/util.c	2013-03-06 14:59:43.000000000 +0900
@@ -39,7 +39,9 @@
 */
 loc1 = (key1 + 1) % hashtable->nlist ;
 loc2 = (key2 + 1) % hashtable->nlist ;
-loc  = (loc1*loc2) % hashtable->nlist ;
+/*loc  = (loc1*loc2) % hashtable->nlist ;*/
+long int loc3  = (long int)loc1*(long int)loc2 % hashtable->nlist ;
+loc=(int)loc3;
 #if MYDEBUG > 0
 fprintf(stdout, "\n loc1 = %d, loc2 = %d, loc3 = %d", loc1, loc2, loc) ;
 fflush(stdout) ;
@@ -158,7 +160,9 @@
 #endif
 loc1 = (key1 + 1) % hashtable->nlist ;
 loc2 = (key2 + 1) % hashtable->nlist ;
-loc  = (loc1*loc2) % hashtable->nlist ;
+/*loc  = (loc1*loc2) % hashtable->nlist ;*/
+long int loc3  = (long int)loc1*(long int)loc2 % hashtable->nlist ;
+loc=(int)loc3;
 #if MYDEBUG > 0
 fprintf(stdout, "\n loc1 = %d, loc2 = %d, loc3 = %d", loc1, loc2, loc) ;
 fflush(stdout) ;
@@ -229,7 +233,9 @@
 }
 loc1 = (key1 + 1) % hashtable->nlist ;
 loc2 = (key2 + 1) % hashtable->nlist ;
-loc  = (loc1*loc2) % hashtable->nlist ;
+/*loc  = (loc1*loc2) % hashtable->nlist ;*/
+long int loc3  = (long int)loc1*(long int)loc2 % hashtable->nlist ;
+loc=(int)loc3;
 /*
    ---------------------------------------------------
    find the location of the first (key1,key2,*) triple