updated for version 7.0063
diff --git a/src/mbyte.c b/src/mbyte.c
index 695b651..7f8400d 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -3096,7 +3096,7 @@
 	    else
 	    {
 		l = (*mb_ptr2len_check)((char_u *)from);
-		if (l > fromlen)
+		if (l > (int)fromlen)
 		    l = fromlen;
 	    }
 	    from += l;