ar: add archive creation support

function                                             old     new   delta
ar_main                                              184     542    +358
output_ar_header                                       -     166    +166
copy_data                                              -      54     +54
filter_replaceable                                     -      19     +19
get_header_ar                                        409     414      +5
header_verbose_list_ar                                85      88      +3
static.msg_unsupported_err                            28       -     -28
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 3/0 up/down: 605/-28)           Total: 577 bytes

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/archival/Config.in b/archival/Config.in
index fb79c7bca..9e2e88c01 100644
--- a/archival/Config.in
+++ b/archival/Config.in
@@ -62,6 +62,13 @@ config FEATURE_AR_LONG_FILENAMES
           It supports the GNU ar long filename method which moves multiple long
           filenames into a the data section of a new ar entry.
 
+config FEATURE_AR_CREATE
+        bool "Support archive creation"
+        default n
+        depends on AR
+        help
+          This enables archive creation (-c and -r) with busybox ar.
+
 config BUNZIP2
         bool "bunzip2"
         default n