busybox: update to 1.27.2

Refresh patches, delete patches backported from upstream.

This fixes ntpd sync issues (ntpd would not sync if the first provided
peer address was unreachable).

Signed-off-by: Magnus Kroken <mkroken@gmail.com>
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>

1 files changed, 169 insertions, 102 deletions

diff --git a/package/utils/busybox/config/shell/Config.in b/package/utils/busybox/config/shell/Config.in
index 4193c18806..e455d3832d 100644
--- a/package/utils/busybox/config/shell/Config.in
+++ b/package/utils/busybox/config/shell/Config.in
@@ -18,9 +18,19 @@ choice
 config BUSYBOX_CONFIG_SH_IS_ASH
 	depends on !BUSYBOX_CONFIG_NOMMU
 	bool "ash"
+	help
+	  Choose ash to be the shell executed by 'sh' name.
+	  The ash code will be built into busybox. If you don't select
+	  "ash" choice (CONFIG_ASH), this shell may only be invoked by
+	  the name 'sh' (and not 'ash').
 
 config BUSYBOX_CONFIG_SH_IS_HUSH
 	bool "hush"
+	help
+	  Choose hush to be the shell executed by 'sh' name.
+	  The hush code will be built into busybox. If you don't select
+	  "hush" choice (CONFIG_HUSH), this shell may only be invoked by
+	  the name 'sh' (and not 'hush').
 
 config BUSYBOX_CONFIG_SH_IS_NONE
 	bool "none"
@@ -32,7 +42,8 @@ choice
 	default BUSYBOX_CONFIG_BASH_IS_NONE
 	help
 	  Choose which shell you want to be executed by 'bash' alias.
-	  The ash shell is the most bash compatible and full featured one.
+	  The ash shell is the most bash compatible and full featured one,
+	  although compatibility is far from being complete.
 
 	  Note that selecting this option does not switch on any bash
 	  compatibility code. It merely makes it possible to install
@@ -47,9 +58,19 @@ choice
 config BUSYBOX_CONFIG_BASH_IS_ASH
 	depends on !BUSYBOX_CONFIG_NOMMU
 	bool "ash"
+	help
+	  Choose ash to be the shell executed by 'bash' name.
+	  The ash code will be built into busybox. If you don't select
+	  "ash" choice (CONFIG_ASH), this shell may only be invoked by
+	  the name 'bash' (and not 'ash').
 
 config BUSYBOX_CONFIG_BASH_IS_HUSH
 	bool "hush"
+	help
+	  Choose hush to be the shell executed by 'bash' name.
+	  The hush code will be built into busybox. If you don't select
+	  "hush" choice (CONFIG_HUSH), this shell may only be invoked by
+	  the name 'bash' (and not 'hush').
 
 config BUSYBOX_CONFIG_BASH_IS_NONE
 	bool "none"
@@ -68,12 +89,15 @@ config BUSYBOX_CONFIG_ASH
 	  shell (by Herbert Xu), which was created by porting the 'ash' shell
 	  (written by Kenneth Almquist) from NetBSD.
 
+# ash options
+# note: Don't remove !NOMMU part in the next line; it would break
+# menuconfig's indenting.
+if !NOMMU && (BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH)
+
 config BUSYBOX_CONFIG_ASH_OPTIMIZE_FOR_SIZE
 	bool "Optimize for size instead of speed"
 	default BUSYBOX_DEFAULT_ASH_OPTIMIZE_FOR_SIZE
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Compile ash for reduced size at the price of speed.
 
 config BUSYBOX_CONFIG_ASH_INTERNAL_GLOB
 	bool "Use internal glob() implementation"
@@ -83,6 +107,23 @@ config BUSYBOX_CONFIG_ASH_INTERNAL_GLOB
 	  Do not use glob() function from libc, use internal implementation.
 	  Use this if you are getting "glob.h: No such file or directory"
 	  or similar build errors.
+	  Note that as of now (2017-01), uclibc and musl glob() both have bugs
+	  which would break ash if you select N here.
+
+config BUSYBOX_CONFIG_ASH_BASH_COMPAT
+	bool "bash-compatible extensions"
+	default BUSYBOX_DEFAULT_ASH_BASH_COMPAT
+	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
+
+config BUSYBOX_CONFIG_ASH_JOB_CONTROL
+	bool "Job control"
+	default BUSYBOX_DEFAULT_ASH_JOB_CONTROL
+	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
+
+config BUSYBOX_CONFIG_ASH_ALIAS
+	bool "Alias support"
+	default BUSYBOX_DEFAULT_ASH_ALIAS
+	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
 
 config BUSYBOX_CONFIG_ASH_RANDOM_SUPPORT
 	bool "Pseudorandom generator and $RANDOM variable"
@@ -100,88 +141,62 @@ config BUSYBOX_CONFIG_ASH_EXPAND_PRMT
 	default BUSYBOX_DEFAULT_ASH_EXPAND_PRMT
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
 	help
-	  "PS#" may contain volatile content, such as backquote commands.
+	  $PS# may contain volatile content, such as backquote commands.
 	  This option recreates the prompt string from the environment
 	  variable each time it is displayed.
 
-config BUSYBOX_CONFIG_ASH_BASH_COMPAT
-	bool "bash-compatible extensions"
-	default BUSYBOX_DEFAULT_ASH_BASH_COMPAT
-	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable bash-compatible extensions.
-
 config BUSYBOX_CONFIG_ASH_IDLE_TIMEOUT
-	bool "Idle timeout variable"
+	bool "Idle timeout variable $TMOUT"
 	default BUSYBOX_DEFAULT_ASH_IDLE_TIMEOUT
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
 	help
-	  Enables bash-like auto-logout after $TMOUT seconds of idle time.
+	  Enable bash-like auto-logout after $TMOUT seconds of idle time.
 
-config BUSYBOX_CONFIG_ASH_JOB_CONTROL
-	bool "Job control"
-	default BUSYBOX_DEFAULT_ASH_JOB_CONTROL
-	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable job control in the ash shell.
-
-config BUSYBOX_CONFIG_ASH_ALIAS
-	bool "Alias support"
-	default BUSYBOX_DEFAULT_ASH_ALIAS
-	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable alias support in the ash shell.
-
-config BUSYBOX_CONFIG_ASH_GETOPTS
-	bool "Builtin getopt to parse positional parameters"
-	default BUSYBOX_DEFAULT_ASH_GETOPTS
+config BUSYBOX_CONFIG_ASH_MAIL
+	bool "Check for new mail in interactive shell"
+	default BUSYBOX_DEFAULT_ASH_MAIL
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
 	help
-	  Enable support for getopts builtin in ash.
+	  Enable "check for new mail" function:
+	  if set, $MAIL file and $MAILPATH list of files
+	  are checked for mtime changes, and "you have mail"
+	  message is printed if change is detected.
 
-config BUSYBOX_CONFIG_ASH_BUILTIN_ECHO
-	bool "Builtin version of 'echo'"
-	default BUSYBOX_DEFAULT_ASH_BUILTIN_ECHO
+config BUSYBOX_CONFIG_ASH_ECHO
+	bool "echo builtin"
+	default BUSYBOX_DEFAULT_ASH_ECHO
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable support for echo builtin in ash.
 
-config BUSYBOX_CONFIG_ASH_BUILTIN_PRINTF
-	bool "Builtin version of 'printf'"
-	default BUSYBOX_DEFAULT_ASH_BUILTIN_PRINTF
+config BUSYBOX_CONFIG_ASH_PRINTF
+	bool "printf builtin"
+	default BUSYBOX_DEFAULT_ASH_PRINTF
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable support for printf builtin in ash.
 
-config BUSYBOX_CONFIG_ASH_BUILTIN_TEST
-	bool "Builtin version of 'test'"
-	default BUSYBOX_DEFAULT_ASH_BUILTIN_TEST
+config BUSYBOX_CONFIG_ASH_TEST
+	bool "test builtin"
+	default BUSYBOX_DEFAULT_ASH_TEST
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable support for test builtin in ash.
 
 config BUSYBOX_CONFIG_ASH_HELP
 	bool "help builtin"
 	default BUSYBOX_DEFAULT_ASH_HELP
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable help builtin in ash.
+
+config BUSYBOX_CONFIG_ASH_GETOPTS
+	bool "getopts builtin"
+	default BUSYBOX_DEFAULT_ASH_GETOPTS
+	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
 
 config BUSYBOX_CONFIG_ASH_CMDCMD
-	bool "'command' command to override shell builtins"
+	bool "command builtin"
 	default BUSYBOX_DEFAULT_ASH_CMDCMD
 	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
 	help
-	  Enable support for the ash 'command' builtin, which allows
-	  you to run the specified command with the specified arguments,
-	  even when there is an ash builtin command with the same name.
+	  Enable support for the 'command' builtin, which allows
+	  you to run the specified command or builtin,
+	  even when there is a function with the same name.
 
-config BUSYBOX_CONFIG_ASH_MAIL
-	bool "Check for new mail on interactive shells"
-	default BUSYBOX_DEFAULT_ASH_MAIL
-	depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
-	help
-	  Enable "check for new mail" function in the ash shell.
+endif # ash options
 config BUSYBOX_CONFIG_CTTYHACK
 	bool "cttyhack"
 	default BUSYBOX_DEFAULT_CTTYHACK
@@ -243,8 +258,6 @@ config BUSYBOX_CONFIG_HUSH_BASH_COMPAT
 	bool "bash-compatible extensions"
 	default BUSYBOX_DEFAULT_HUSH_BASH_COMPAT
 	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
-	help
-	  Enable bash-compatible extensions.
 
 config BUSYBOX_CONFIG_HUSH_BRACE_EXPANSION
 	bool "Brace expansion"
@@ -253,13 +266,6 @@ config BUSYBOX_CONFIG_HUSH_BRACE_EXPANSION
 	help
 	  Enable {abc,def} extension.
 
-config BUSYBOX_CONFIG_HUSH_HELP
-	bool "help builtin"
-	default BUSYBOX_DEFAULT_HUSH_HELP
-	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
-	help
-	  Enable help builtin in hush. Code size + ~1 kbyte.
-
 config BUSYBOX_CONFIG_HUSH_INTERACTIVE
 	bool "Interactive mode"
 	default BUSYBOX_DEFAULT_HUSH_INTERACTIVE
@@ -274,8 +280,6 @@ config BUSYBOX_CONFIG_HUSH_SAVEHISTORY
 	bool "Save command history to .hush_history"
 	default BUSYBOX_DEFAULT_HUSH_SAVEHISTORY
 	depends on BUSYBOX_CONFIG_HUSH_INTERACTIVE && BUSYBOX_CONFIG_FEATURE_EDITING_SAVEHISTORY
-	help
-	  Enable history saving in hush.
 
 config BUSYBOX_CONFIG_HUSH_JOB
 	bool "Job control"
@@ -289,42 +293,38 @@ config BUSYBOX_CONFIG_HUSH_JOB
 	  but no separate process group is formed.
 
 config BUSYBOX_CONFIG_HUSH_TICK
-	bool "Process substitution"
+	bool "Support process substitution"
 	default BUSYBOX_DEFAULT_HUSH_TICK
 	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
 	help
-	  Enable process substitution `command` and $(command) in hush.
+	  Enable `command` and $(command).
 
 config BUSYBOX_CONFIG_HUSH_IF
 	bool "Support if/then/elif/else/fi"
 	default BUSYBOX_DEFAULT_HUSH_IF
 	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
-	help
-	  Enable if/then/elif/else/fi in hush.
 
 config BUSYBOX_CONFIG_HUSH_LOOPS
 	bool "Support for, while and until loops"
 	default BUSYBOX_DEFAULT_HUSH_LOOPS
 	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
-	help
-	  Enable for, while and until loops in hush.
 
 config BUSYBOX_CONFIG_HUSH_CASE
 	bool "Support case ... esac statement"
 	default BUSYBOX_DEFAULT_HUSH_CASE
 	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
 	help
-	  Enable case ... esac statement in hush. +400 bytes.
+	  Enable case ... esac statement. +400 bytes.
 
 config BUSYBOX_CONFIG_HUSH_FUNCTIONS
 	bool "Support funcname() { commands; } syntax"
 	default BUSYBOX_DEFAULT_HUSH_FUNCTIONS
 	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
 	help
-	  Enable support for shell functions in hush. +800 bytes.
+	  Enable support for shell functions. +800 bytes.
 
 config BUSYBOX_CONFIG_HUSH_LOCAL
-	bool "Support local builtin"
+	bool "local builtin"
 	default BUSYBOX_DEFAULT_HUSH_LOCAL
 	depends on BUSYBOX_CONFIG_HUSH_FUNCTIONS
 	help
@@ -338,13 +338,6 @@ config BUSYBOX_CONFIG_HUSH_RANDOM_SUPPORT
 	  Enable pseudorandom generator and dynamic variable "$RANDOM".
 	  Each read of "$RANDOM" will generate a new pseudorandom value.
 
-config BUSYBOX_CONFIG_HUSH_EXPORT_N
-	bool "Support 'export -n' option"
-	default BUSYBOX_DEFAULT_HUSH_EXPORT_N
-	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
-	help
-	  export -n unexports variables. It is a bash extension.
-
 config BUSYBOX_CONFIG_HUSH_MODE_X
 	bool "Support 'hush -x' option and 'set -x' command"
 	default BUSYBOX_DEFAULT_HUSH_MODE_X
@@ -353,6 +346,88 @@ config BUSYBOX_CONFIG_HUSH_MODE_X
 	  This instructs hush to print commands before execution.
 	  Adds ~300 bytes.
 
+config BUSYBOX_CONFIG_HUSH_ECHO
+	bool "echo builtin"
+	default BUSYBOX_DEFAULT_HUSH_ECHO
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_PRINTF
+	bool "printf builtin"
+	default BUSYBOX_DEFAULT_HUSH_PRINTF
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_TEST
+	bool "test builtin"
+	default BUSYBOX_DEFAULT_HUSH_TEST
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_HELP
+	bool "help builtin"
+	default BUSYBOX_DEFAULT_HUSH_HELP
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_EXPORT
+	bool "export builtin"
+	default BUSYBOX_DEFAULT_HUSH_EXPORT
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_EXPORT_N
+	bool "Support 'export -n' option"
+	default BUSYBOX_DEFAULT_HUSH_EXPORT_N
+	depends on BUSYBOX_CONFIG_HUSH_EXPORT
+	help
+	  export -n unexports variables. It is a bash extension.
+
+config BUSYBOX_CONFIG_HUSH_KILL
+	bool "kill builtin (supports kill %jobspec)"
+	default BUSYBOX_DEFAULT_HUSH_KILL
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_WAIT
+	bool "wait builtin"
+	default BUSYBOX_DEFAULT_HUSH_WAIT
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_TRAP
+	bool "trap builtin"
+	default BUSYBOX_DEFAULT_HUSH_TRAP
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_TYPE
+	bool "type builtin"
+	default BUSYBOX_DEFAULT_HUSH_TYPE
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_READ
+	bool "read builtin"
+	default BUSYBOX_DEFAULT_HUSH_READ
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_SET
+	bool "set builtin"
+	default BUSYBOX_DEFAULT_HUSH_SET
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_UNSET
+	bool "unset builtin"
+	default BUSYBOX_DEFAULT_HUSH_UNSET
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_ULIMIT
+	bool "ulimit builtin"
+	default BUSYBOX_DEFAULT_HUSH_ULIMIT
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_UMASK
+	bool "umask builtin"
+	default BUSYBOX_DEFAULT_HUSH_UMASK
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_MEMLEAK
+	bool "memleak builtin (debugging)"
+	default BUSYBOX_DEFAULT_HUSH_MEMLEAK
+	depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
 config BUSYBOX_CONFIG_MSH
 	bool "msh (deprecated: aliased to hush)"
 	default BUSYBOX_DEFAULT_MSH
@@ -361,6 +436,9 @@ config BUSYBOX_CONFIG_MSH
 	  msh is deprecated and will be removed, please migrate to hush.
 
 
+comment "Options common to all shells"
+if ASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
 config BUSYBOX_CONFIG_FEATURE_SH_MATH
 	bool "POSIX math support"
 	default BUSYBOX_DEFAULT_FEATURE_SH_MATH
@@ -399,23 +477,11 @@ config BUSYBOX_CONFIG_FEATURE_SH_STANDALONE
 	  for use as a rescue shell, in the event that you screw up your system.
 
 	  This is implemented by re-execing /proc/self/exe (typically)
-	  with right parameters. Some selected applets ("NOFORK" applets)
-	  can even be executed without creating new process.
-	  Instead, busybox will call <applet>_main() internally.
-
-	  However, this causes problems in chroot jails without mounted /proc
-	  and with ps/top (command name can be shown as 'exe' for applets
-	  started this way).
-# untrue?
-#	  Note that this will *also* cause applets to take precedence
-#	  over shell builtins of the same name. So turning this on will
-#	  eliminate any performance gained by turning on the builtin "echo"
-#	  and "test" commands in ash.
-# untrue?
-#	  Note that when using this option, the shell will attempt to directly
-#	  run '/bin/busybox'. If you do not have the busybox binary sitting in
-#	  that exact location with that exact name, this option will not work at
-#	  all.
+	  with right parameters.
+
+	  However, there are drawbacks: it is problematic in chroot jails
+	  without mounted /proc, and ps/top may show command name as 'exe'
+	  for applets started this way.
 
 config BUSYBOX_CONFIG_FEATURE_SH_NOFORK
 	bool "Run 'nofork' applets directly"
@@ -444,5 +510,6 @@ config BUSYBOX_CONFIG_FEATURE_SH_HISTFILESIZE
 	  to set shell history size. Note that its max value is capped
 	  by "History size" setting in library tuning section.
 
+endif # Options common to all shells
 
 endmenu