ash,hush: optional support for $HISTFILESIZE.

Based on patch from Alexey Fomenko (ext-alexey.fomenko AT nokia.com)

function                                             old     new   delta
size_from_HISTFILESIZE                                 -      44     +44
hush_main                                            998    1025     +27
ash_main                                            1348    1374     +26
read_line_input                                     3361    3372     +11
new_line_input_t                                      17      24      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/shell/Config.src b/shell/Config.src
index e96c21620..b31e62dda 100644
--- a/shell/Config.src
+++ b/shell/Config.src
@@ -136,4 +136,14 @@ config FEATURE_SH_NOFORK
           This feature is relatively new. Use with care. Report bugs
           to project mailing list.
 
+config FEATURE_SH_HISTFILESIZE
+        bool "Use $HISTFILESIZE"
+        default y
+        depends on HUSH || ASH
+        help
+          This option makes busybox shells to use $HISTFILESIZE variable
+          to set shell history size. Note that its max value is capped
+          by "History size" setting in library tuning section.
+
+
 endmenu