=== modified file 'libmysqld/emb_qcache.cc'
--- a/libmysqld/emb_qcache.cc	2007-12-14 13:30:22 +0000
+++ b/libmysqld/emb_qcache.cc	2008-07-10 20:41:56 +0000
@@ -447,7 +447,8 @@
   if (thd->protocol == &thd->protocol_binary)
   {
     uint length;
-    row= (MYSQL_ROWS *)alloc_root(&data->alloc, rows * sizeof(MYSQL_ROWS));
+    row= (MYSQL_ROWS *)alloc_root(&data->alloc,
+                                  (size_t) (rows * sizeof(MYSQL_ROWS)));
     end_row= row + rows;
     data->data= row;