$NetBSD: patch-ab,v 1.12 2008/05/18 01:48:09 tnn Exp $

--- src/tar.c.orig	2008-04-14 14:03:13.000000000 +0200
+++ src/tar.c
@@ -285,6 +286,7 @@ enum
   NO_RECURSION_OPTION,
   NO_SAME_OWNER_OPTION,
   NO_SAME_PERMISSIONS_OPTION,
+  NO_UNLINK_FIRST_OPTION,
   NO_UNQUOTE_OPTION,
   NO_WILDCARDS_MATCH_SLASH_OPTION,
   NO_WILDCARDS_OPTION,
@@ -483,6 +485,8 @@ static struct argp_option options[] = {
    N_("try extracting files with the same ownership"), GRID+1 },
   {"no-same-owner", NO_SAME_OWNER_OPTION, 0, 0,
    N_("extract files as yourself"), GRID+1 },
+  {"no-unlink-first", NO_UNLINK_FIRST_OPTION, 0, 0,
+   N_("don't remove each file prior to extracting"), GRID+1 },
   {"numeric-owner", NUMERIC_OWNER_OPTION, 0, 0,
    N_("always use numbers for user/group names"), GRID+1 },
   {"preserve-permissions", 'p', 0, 0,
@@ -1495,6 +1501,10 @@ parse_opt (int key, char *arg, struct ar
       old_files_option = UNLINK_FIRST_OLD_FILES;
       break;
 
+    case NO_UNLINK_FIRST_OPTION:
+      old_files_option = 0;
+      break;
+
     case UTC_OPTION:
       utc_option = true;
       break;