Index: ext/fts3/fts3.c
==================================================================
--- ext/fts3/fts3.c
+++ ext/fts3/fts3.c
@@ -3988,11 +3988,11 @@
       }else{
         pDL->iDocid -= iDelta;
       }
       pDL->pList = pIter;
       fts3PoslistCopy(0, &pIter);
-      pDL->nList = (pIter - pDL->pList);
+      pDL->nList = (int)(pIter - pDL->pList);
 
       /* pIter now points just past the 0x00 that terminates the position-
       ** list for document pDL->iDocid. However, if this position-list was
       ** edited in place by fts3EvalNearTrim(), then pIter may not actually
       ** point to the start of the next docid value. The following line deals