Index: src/os_win.c
==================================================================
--- src/os_win.c
+++ src/os_win.c
@@ -1602,11 +1602,10 @@
       pFile->szChunk = *(int *)pArg;
       return SQLITE_OK;
     }
     case SQLITE_FCNTL_SIZE_HINT: {
       if( pFile->szChunk>0 ){
-        winFile *pFile = (winFile*)id;
         sqlite3_int64 oldSz;
         int rc = winFileSize(id, &oldSz);
         if( rc==SQLITE_OK ){
           sqlite3_int64 newSz = *(sqlite3_int64*)pArg;
           if( newSz>oldSz ){