[PATCH 2/9] mark Linux-specific configuration options

Tito farmatito at tiscali.it
Wed Jul 28 21:41:15 UTC 2010


On Wednesday 28 July 2010 23:03:11 Jeremie Koenig wrote:
> PLATFORM_LINUX is used as a dependency for applets or features
> which require Linux-specific interfaces.
> 
> Signed-off-by: Jeremie Koenig <jk at jk.fr.eu.org>
> Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
> ---
>  Config.in                     |   12 ++++++++++++
>  console-tools/Config.src      |   13 +++++++++++++
>  coreutils/Config.src          |    2 ++
>  coreutils/date.c              |    2 +-
>  e2fsprogs/Config.src          |    1 +
>  init/Config.src               |    2 ++
>  init/bootchartd.c             |    1 +
>  libbb/Config.src              |    1 +
>  loginutils/Config.src         |    3 +++
>  miscutils/Config.src          |   19 ++++++++++++++++++-
>  miscutils/conspy.c            |    1 +
>  miscutils/ubi_attach_detach.c |    2 ++
>  modutils/Config.src           |    1 +
>  networking/Config.src         |   23 ++++++++++++++++++++++-
>  networking/udhcp/Config.src   |    2 ++
>  procps/Config.src             |    4 +++-
>  shell/cttyhack.c              |    1 +
>  sysklogd/Config.src           |    1 +
>  util-linux/Config.src         |   27 +++++++++++++++++++++++++++
>  19 files changed, 114 insertions(+), 4 deletions(-)
> 
> diff --git a/Config.in b/Config.in
> index eebc977..35f43b3 100644
> --- a/Config.in
> +++ b/Config.in
> @@ -47,6 +47,17 @@ config USE_PORTABLE_CODE
>  	  compiler other than gcc.
>  	  If you do use gcc, this option may needlessly increase code size.
>  
> +config PLATFORM_LINUX
> +	bool "Enable Linux-specific applets and features"
> +	default y
> +	help
> +	  For the most part, busybox requires only POSIX compatibility
> +	  from the target system, but some applets and features use
> +	  Linux-specific interfaces.
> +
> +	  Answering 'N' here will disable such applets and hide the
> +	  corresponding configuration options.
> +
>  choice
>  	prompt "Buffer allocation policy"
>  	default FEATURE_BUFFERS_USE_MALLOC
> @@ -353,6 +364,7 @@ config FEATURE_SUID_CONFIG_QUIET
>  config SELINUX
>  	bool "Support NSA Security Enhanced Linux"
>  	default n
> +	depends on PLATFORM_LINUX
>  	help
>  	  Enable support for SELinux in applets ls, ps, and id. Also provide
>  	  the option of compiling in SELinux applets.
> diff --git a/console-tools/Config.src b/console-tools/Config.src
> index 6e3191a..cdb2680 100644
> --- a/console-tools/Config.src
> +++ b/console-tools/Config.src
> @@ -10,6 +10,7 @@ INSERT
>  config CHVT
>  	bool "chvt"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program is used to change to another terminal.
>  	  Example: chvt 4 (change to terminal /dev/tty4)
> @@ -17,6 +18,7 @@ config CHVT
>  config FGCONSOLE
>  	bool "fgconsole"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program prints active (foreground) console number.
>  
> @@ -29,12 +31,14 @@ config CLEAR
>  config DEALLOCVT
>  	bool "deallocvt"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program deallocates unused virtual consoles.
>  
>  config DUMPKMAP
>  	bool "dumpkmap"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program dumps the kernel's keyboard translation table to
>  	  stdout, in binary format. You can then use loadkmap to load it.
> @@ -42,18 +46,21 @@ config DUMPKMAP
>  config KBD_MODE
>  	bool "kbd_mode"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program reports and sets keyboard mode.
>  
>  config LOADFONT
>  	bool "loadfont"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program loads a console font from standard input.
>  
>  config LOADKMAP
>  	bool "loadkmap"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program loads a keyboard translation table from
>  	  standard input.
> @@ -61,6 +68,7 @@ config LOADKMAP
>  config OPENVT
>  	bool "openvt"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program is used to start a command on an unused
>  	  virtual terminal.
> @@ -92,6 +100,7 @@ config FEATURE_RESIZE_PRINT
>  config SETCONSOLE
>  	bool "setconsole"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program redirects the system console to another device,
>  	  like the current tty while logged in via telnet.
> @@ -106,6 +115,7 @@ config FEATURE_SETCONSOLE_LONG_OPTIONS
>  config SETFONT
>  	bool "setfont"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Allows to load console screen map. Useful for i18n.
>  
> @@ -127,6 +137,7 @@ config DEFAULT_SETFONT_DIR
>  config SETKEYCODES
>  	bool "setkeycodes"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program loads entries into the kernel's scancode-to-keycode
>  	  map, allowing unusual keyboards to generate usable keycodes.
> @@ -134,12 +145,14 @@ config SETKEYCODES
>  config SETLOGCONS
>  	bool "setlogcons"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This program redirects the output console of kernel messages.
>  
>  config SHOWKEY
>  	bool "showkey"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Shows keys pressed.
>  
> diff --git a/coreutils/Config.src b/coreutils/Config.src
> index d4c9e05..780b73f 100644
> --- a/coreutils/Config.src
> +++ b/coreutils/Config.src
> @@ -591,6 +591,7 @@ config FEATURE_SPLIT_FANCY
>  config STAT
>  	bool "stat"
>  	default y
> +	depends on PLATFORM_LINUX # statfs()
>  	help
>  	  display file or filesystem status.
>  
> @@ -606,6 +607,7 @@ config FEATURE_STAT_FORMAT
>  config STTY
>  	bool "stty"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  stty is used to change and print terminal line settings.
>  
> diff --git a/coreutils/date.c b/coreutils/date.c
> index c737f09..cb41724 100644
> --- a/coreutils/date.c
> +++ b/coreutils/date.c
> @@ -72,7 +72,7 @@
>  //config:config FEATURE_DATE_NANO
>  //config:	bool "Support %[num]N nanosecond format specifier"
>  //config:	default n
> -//config:	depends on DATE
> +//config:	depends on DATE && PLATFORM_LINUX # syscall(__NR_clock_gettime)
>  //config:	help
>  //config:	  Support %[num]N format specifier. Adds ~250 bytes of code.
>  //config:
> diff --git a/e2fsprogs/Config.src b/e2fsprogs/Config.src
> index 62bc810..6043e9b 100644
> --- a/e2fsprogs/Config.src
> +++ b/e2fsprogs/Config.src
> @@ -33,6 +33,7 @@ config FSCK
>  config LSATTR
>  	bool "lsattr"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  lsattr lists the file attributes on a second extended file system.
>  
> diff --git a/init/Config.src b/init/Config.src
> index 590e298..a5e76be 100644
> --- a/init/Config.src
> +++ b/init/Config.src
> @@ -10,6 +10,7 @@ INSERT
>  config INIT
>  	bool "init"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SYSLOG
>  	help
>  	  init is the first program run when the system boots.
> @@ -92,6 +93,7 @@ config FEATURE_INITRD
>  config HALT
>  	bool "poweroff, halt, and reboot"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Stop all processes and either halt, reboot, or power off the system.
>  
> diff --git a/init/bootchartd.c b/init/bootchartd.c
> index dae2fe6..a1c0164 100644
> --- a/init/bootchartd.c
> +++ b/init/bootchartd.c
> @@ -6,6 +6,7 @@
>  //config:config BOOTCHARTD
>  //config:	bool "bootchartd"
>  //config:	default y
> +//config:	depends on PLATFORM_LINUX
>  //config:	help
>  //config:	  bootchartd is commonly used to profile the boot process
>  //config:	  for the purpose of speeding it up. In this case, it is started
> diff --git a/libbb/Config.src b/libbb/Config.src
> index 09bf892..9b01757 100644
> --- a/libbb/Config.src
> +++ b/libbb/Config.src
> @@ -153,6 +153,7 @@ config FEATURE_COPYBUF_KB
>  config MONOTONIC_SYSCALL
>  	bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
>  	default n
> +	depends on PLATFORM_LINUX
>  	help
>  	  Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
>  	  time intervals (time, ping, traceroute etc need this).
> diff --git a/loginutils/Config.src b/loginutils/Config.src
> index 5d497c4..425d041 100644
> --- a/loginutils/Config.src
> +++ b/loginutils/Config.src
> @@ -179,6 +179,7 @@ config DELUSER
>  config GETTY
>  	bool "getty"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SYSLOG
>  	help
>  	  getty lets you log in on a tty, it is normally invoked by init.
> @@ -186,6 +187,7 @@ config GETTY
>  config LOGIN
>  	bool "login"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SUID
>  	select FEATURE_SYSLOG
>  	help
> @@ -295,6 +297,7 @@ config SULOGIN
>  config VLOCK
>  	bool "vlock"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SUID
>  	help
>  	  Build the "vlock" applet which allows you to lock (virtual) terminals.
> diff --git a/miscutils/Config.src b/miscutils/Config.src
> index 2f7c502..e89e231 100644
> --- a/miscutils/Config.src
> +++ b/miscutils/Config.src
> @@ -10,6 +10,7 @@ INSERT
>  config ADJTIMEX
>  	bool "adjtimex"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Adjtimex reads and optionally sets adjustment parameters for
>  	  the Linux clock adjustment algorithm.
> @@ -24,6 +25,7 @@ config BBCONFIG
>  config BEEP
>  	bool "beep"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The beep applets beeps in a given freq/Hz.
>  
> @@ -180,6 +182,7 @@ config FEATURE_DC_LIBM
>  config DEVFSD
>  	bool "devfsd (obsolete)"
>  	default n
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SYSLOG
>  	help
>  	  This is deprecated and should NOT be used anymore.
> @@ -223,6 +226,7 @@ config DEVFSD_VERBOSE
>  config FEATURE_DEVFS
>  	bool "Use devfs names for all devices (obsolete)"
>  	default n
> +	depends on PLATFORM_LINUX
>  	help
>  	  This is obsolete and should NOT be used anymore.
>  	  Use linux >= 2.6 (optionally with hotplug) and mdev instead!
> @@ -242,6 +246,7 @@ config DEVMEM
>  config EJECT
>  	bool "eject"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Used to eject cdroms. (defaults to /dev/cdrom)
>  
> @@ -256,6 +261,7 @@ config FEATURE_EJECT_SCSI
>  config FBSPLASH
>  	bool "fbsplash"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Shows splash image and progress bar on framebuffer device.
>  	  Can be used during boot phase of an embedded device. ~2kb.
> @@ -305,6 +311,7 @@ config FLASH_ERASEALL
>  config IONICE
>  	bool "ionice"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Set/set program io scheduling class and priority
>  	  Requires kernel >= 2.6.13
> @@ -344,6 +351,11 @@ endchoice
>  config LESS
>  	bool "less"
>  	default y
> +	depends on PLATFORM_LINUX
> +	depends on PLATFORM_LINUX
> +	depends on PLATFORM_LINUX
> +	depends on PLATFORM_LINUX
> +	depends on PLATFORM_LINUX
>  	help
>  	  'less' is a pager, meaning that it displays text files. It possesses
>  	  a wide array of features, and is an improvement over 'more'.
> @@ -410,6 +422,7 @@ config FEATURE_LESS_LINENUMS
>  config HDPARM
>  	bool "hdparm"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Get/Set hard drive parameters. Primarily intended for ATA
>  	  drives. Adds about 13k (or around 30k if you enable the
> @@ -526,6 +539,7 @@ config MT
>  config RAIDAUTORUN
>  	bool "raidautorun"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  raidautorun tells the kernel md driver to
>  	  search and start RAID arrays.
> @@ -533,7 +547,7 @@ config RAIDAUTORUN
>  config READAHEAD
>  	bool "readahead"
>  	default y
> -	depends on LFS
> +	depends on LFS && PLATFORM_LINUX
>  	help
>  	  Preload the files listed on the command line into RAM cache so that
>  	  subsequent reads on these files will not block on disk I/O.
> @@ -550,6 +564,7 @@ config READAHEAD
>  config RFKILL
>  	bool "rfkill"
>  	default n  # doesn't build on Ubuntu 9.04
> +	depends on PLATFORM_LINUX
>  	help
>  	  Enable/disable wireless devices.
>  
> @@ -570,6 +585,7 @@ config RUNLEVEL
>  config RX
>  	bool "rx"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Receive files using the Xmodem protocol.
>  
> @@ -641,6 +657,7 @@ config WALL
>  config WATCHDOG
>  	bool "watchdog"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The watchdog utility is used with hardware or software watchdog
>  	  device drivers. It opens the specified watchdog device special file
> diff --git a/miscutils/conspy.c b/miscutils/conspy.c
> index 509a0f2..a173d8e 100644
> --- a/miscutils/conspy.c
> +++ b/miscutils/conspy.c
> @@ -17,6 +17,7 @@
>  //config:config CONSPY
>  //config:	bool "conspy"
>  //config:	default n
> +//config:	depends on PLATFORM_LINUX
>  //config:	help
>  //config:	  A text-mode VNC like program for Linux virtual terminals.
>  //config:	  example:  conspy NUM      shared access to console num
> diff --git a/miscutils/ubi_attach_detach.c b/miscutils/ubi_attach_detach.c
> index 7b92a8a..0d63a10 100644
> --- a/miscutils/ubi_attach_detach.c
> +++ b/miscutils/ubi_attach_detach.c
> @@ -12,12 +12,14 @@
>  //config:config UBIATTACH
>  //config:	bool "ubiattach"
>  //config:	default n
> +//config:	depends on PLATFORM_LINUX
>  //config:	help
>  //config:	  Attach MTD device to an UBI device.
>  //config:
>  //config:config UBIDETACH
>  //config:	bool "ubidetach"
>  //config:	default n
> +//config:	depends on PLATFORM_LINUX
>  //config:	help
>  //config:	  Detach MTD device from an UBI device.
>  
> diff --git a/modutils/Config.src b/modutils/Config.src
> index a7dcb3a..4191d29 100644
> --- a/modutils/Config.src
> +++ b/modutils/Config.src
> @@ -4,6 +4,7 @@
>  #
>  
>  menu "Linux Module Utilities"
> +depends on PLATFORM_LINUX
>  
>  INSERT
>  
> diff --git a/networking/Config.src b/networking/Config.src
> index 4494362..26c59e7 100644
> --- a/networking/Config.src
> +++ b/networking/Config.src
> @@ -43,6 +43,7 @@ config FEATURE_PREFER_IPV4_ADDRESS
>  config VERBOSE_RESOLUTION_ERRORS
>  	bool "Verbose resolution errors"
>  	default n
> +	depends on PLATFORM_LINUX #because of xsocket() in libbb/xfuncs_prinf.c
>  	help
>  	  Enable if you are not satisfied with simplistic
>  	  "can't resolve 'hostname.com'" and want to know more.
> @@ -51,18 +52,21 @@ config VERBOSE_RESOLUTION_ERRORS
>  config ARP
>  	bool "arp"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Manipulate the system ARP cache.
>  
>  config ARPING
>  	bool "arping"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Ping hosts by ARP packets.
>  
>  config BRCTL
>  	bool "brctl"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Manage ethernet bridges.
>  	  Supports addbr/delbr and addif/delif.
> @@ -95,6 +99,7 @@ config DNSD
>  config ETHER_WAKE
>  	bool "ether-wake"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Send a magic packet to wake up sleeping machines.
>  
> @@ -269,6 +274,7 @@ config FEATURE_HTTPD_PROXY
>  config IFCONFIG
>  	bool "ifconfig"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Ifconfig is used to configure the kernel-resident network interfaces.
>  
> @@ -316,6 +322,7 @@ config FEATURE_IFCONFIG_BROADCAST_PLUS
>  config IFENSLAVE
>  	bool "ifenslave"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Userspace application to bind several interfaces
>  	  to a logical interface (use with kernel bonding driver).
> @@ -323,6 +330,7 @@ config IFENSLAVE
>  config IFPLUGD
>  	bool "ifplugd"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Network interface plug detection daemon.
>  
> @@ -364,7 +372,7 @@ config FEATURE_IFUPDOWN_IP
>  config FEATURE_IFUPDOWN_IP_BUILTIN
>  	bool "Use busybox ip applet"
>  	default y
> -	depends on FEATURE_IFUPDOWN_IP
> +	depends on FEATURE_IFUPDOWN_IP && PLATFORM_LINUX
>  	select IP
>  	select FEATURE_IP_ADDRESS
>  	select FEATURE_IP_LINK
> @@ -483,6 +491,7 @@ config FEATURE_INETD_RPC
>  config IP
>  	bool "ip"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The "ip" applet is a TCP/IP interface configuration and routing
>  	  utility. You generally don't need "ip" to use busybox with
> @@ -598,6 +607,7 @@ config FEATURE_IPCALC_LONG_OPTIONS
>  config NAMEIF
>  	bool "nameif"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SYSLOG
>  	help
>  	  nameif is used to rename network interface by its MAC address.
> @@ -626,6 +636,7 @@ config FEATURE_NAMEIF_EXTENDED
>  config NETSTAT
>  	bool "netstat"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  netstat prints information about the Linux networking subsystem.
>  
> @@ -654,6 +665,7 @@ config NSLOOKUP
>  config NTPD
>  	bool "ntpd"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The NTP client/server daemon.
>  
> @@ -668,6 +680,7 @@ config FEATURE_NTPD_SERVER
>  config PING
>  	bool "ping"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  ping uses the ICMP protocol's mandatory ECHO_REQUEST datagram to
>  	  elicit an ICMP ECHO_RESPONSE from a host or gateway.
> @@ -696,12 +709,14 @@ config PSCAN
>  config ROUTE
>  	bool "route"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Route displays or manipulates the kernel's IP routing tables.
>  
>  config SLATTACH
>  	bool "slattach"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  slattach is a small utility to attach network interfaces to serial
>  	  lines.
> @@ -719,6 +734,7 @@ config SLATTACH
>  config TCPSVD
>  	bool "tcpsvd"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  tcpsvd listens on a TCP port and runs a program for each new
>  	  connection.
> @@ -888,6 +904,7 @@ config TFTP_DEBUG
>  config TRACEROUTE
>  	bool "traceroute"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Utility to trace the route of IP packets.
>  
> @@ -924,6 +941,7 @@ config FEATURE_TRACEROUTE_USE_ICMP
>  config TUNCTL
>  	bool "tunctl"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  tunctl creates or deletes tun devices.
>  
> @@ -949,6 +967,7 @@ config IFUPDOWN_UDHCPC_CMD_OPTIONS
>  config UDPSVD
>  	bool "udpsvd"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  udpsvd listens on an UDP port and runs a program for each new
>  	  connection.
> @@ -956,6 +975,7 @@ config UDPSVD
>  config VCONFIG
>  	bool "vconfig"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Creates, removes, and configures VLAN interfaces
>  
> @@ -990,6 +1010,7 @@ config FEATURE_WGET_LONG_OPTIONS
>  config ZCIP
>  	bool "zcip"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SYSLOG
>  	help
>  	  ZCIP provides ZeroConf IPv4 address selection, according to RFC 3927.
> diff --git a/networking/udhcp/Config.src b/networking/udhcp/Config.src
> index aac8856..331dffc 100644
> --- a/networking/udhcp/Config.src
> +++ b/networking/udhcp/Config.src
> @@ -8,6 +8,7 @@ INSERT
>  config UDHCPD
>  	bool "udhcp server (udhcpd)"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  udhcpd is a DHCP server geared primarily toward embedded systems,
>  	  while striving to be fully functional and RFC compliant.
> @@ -51,6 +52,7 @@ config DHCPD_LEASES_FILE
>  config UDHCPC
>  	bool "udhcp client (udhcpc)"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  udhcpc is a DHCP client geared primarily toward embedded systems,
>  	  while striving to be fully functional and RFC compliant.
> diff --git a/procps/Config.src b/procps/Config.src
> index e61de56..1ff6dfd 100644
> --- a/procps/Config.src
> +++ b/procps/Config.src
> @@ -10,6 +10,7 @@ INSERT
>  config FREE
>  	bool "free"
>  	default y
> +	depends on PLATFORM_LINUX #sysinfo()
>  	help
>  	  free displays the total amount of free and used physical and swap
>  	  memory in the system, as well as the buffers used by the kernel.
> @@ -104,7 +105,7 @@ config FEATURE_PS_WIDE
>  config FEATURE_PS_TIME
>  	bool "Enable time and elapsed time output"
>  	default y
> -	depends on PS && DESKTOP
> +	depends on PS && DESKTOP && PLATFORM_LINUX #sysinfo()
>  	help
>  	  Support -o time and -o etime output specifiers.
>  
> @@ -200,6 +201,7 @@ config FEATURE_SHOW_THREADS
>  config UPTIME
>  	bool "uptime"
>  	default y
> +	depends on PLATFORM_LINUX #sysinfo()
>  	help
>  	  uptime gives a one line display of the current time, how long
>  	  the system has been running, how many users are currently logged
> diff --git a/shell/cttyhack.c b/shell/cttyhack.c
> index 7af13fd..a80d49d 100644
> --- a/shell/cttyhack.c
> +++ b/shell/cttyhack.c
> @@ -13,6 +13,7 @@
>  //config:config CTTYHACK
>  //config:	bool "cttyhack"
>  //config:	default y
> +//config:	depends on PLATFORM_LINUX
>  //config:	help
>  //config:	  One common problem reported on the mailing list is "can't access tty;
>  //config:	  job control turned off" error message which typically appears when
> diff --git a/sysklogd/Config.src b/sysklogd/Config.src
> index 6d574ab..bfe2d1c 100644
> --- a/sysklogd/Config.src
> +++ b/sysklogd/Config.src
> @@ -109,6 +109,7 @@ config FEATURE_LOGREAD_REDUCED_LOCKING
>  config KLOGD
>  	bool "klogd"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  klogd is a utility which intercepts and logs all
>  	  messages from the Linux kernel and sends the messages
> diff --git a/util-linux/Config.src b/util-linux/Config.src
> index 91d1fc2..98953c1 100644
> --- a/util-linux/Config.src
> +++ b/util-linux/Config.src
> @@ -10,6 +10,7 @@ INSERT
>  config ACPID
>  	bool "acpid"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  acpid listens to ACPI events coming either in textual form from
>  	  /proc/acpi/event (though it is marked deprecated it is still widely
> @@ -32,6 +33,7 @@ config FEATURE_ACPID_COMPAT
>  config BLKID
>  	bool "blkid"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select VOLUMEID
>  	help
>  	  Lists labels and UUIDs of all filesystems.
> @@ -41,6 +43,7 @@ config BLKID
>  config DMESG
>  	bool "dmesg"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  dmesg is used to examine or control the kernel ring buffer. When the
>  	  Linux kernel prints messages to the system log, they are stored in
> @@ -74,6 +77,7 @@ config FEATURE_DMESG_PRETTY
>  config FBSET
>  	bool "fbset"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  fbset is used to show or change the settings of a Linux frame buffer
>  	  device. The frame buffer device provides a simple and unique
> @@ -102,6 +106,7 @@ config FEATURE_FBSET_READMODE
>  config FDFLUSH
>  	bool "fdflush"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  fdflush is only needed when changing media on slightly-broken
>  	  removable media drives. It is used to make Linux believe that a
> @@ -114,12 +119,14 @@ config FDFLUSH
>  config FDFORMAT
>  	bool "fdformat"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  fdformat is used to low-level format a floppy disk.
>  
>  config FDISK
>  	bool "fdisk"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The fdisk utility is used to divide hard disks into one or more
>  	  logical disks, which are generally called partitions. This utility
> @@ -187,6 +194,7 @@ config FEATURE_FDISK_ADVANCED
>  config FINDFS
>  	bool "findfs"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select VOLUMEID
>  	help
>  	  Prints the name of a filesystem with given label or UUID.
> @@ -202,6 +210,7 @@ config FLOCK
>  config FREERAMDISK
>  	bool "freeramdisk"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Linux allows you to create ramdisks. This utility allows you to
>  	  delete them and completely free all memory that was used for the
> @@ -224,12 +233,14 @@ config FSCK_MINIX
>  config MKFS_EXT2
>  	bool "mkfs_ext2"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Utility to create EXT2 filesystems.
>  
>  config MKFS_MINIX
>  	bool "mkfs_minix"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The minix filesystem is a nice, small, compact, read-write filesystem
>  	  with little overhead. If you wish to be able to create minix
> @@ -247,6 +258,7 @@ config FEATURE_MINIX2
>  config MKFS_REISER
>  	bool "mkfs_reiser"
>  	default n
> +	depends on PLATFORM_LINUX
>  	help
>  	  Utility to create ReiserFS filesystems.
>  	  Note: this applet needs a lot of testing and polishing.
> @@ -254,6 +266,7 @@ config MKFS_REISER
>  config MKFS_VFAT
>  	bool "mkfs_vfat"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Utility to create FAT32 filesystems.
>  
> @@ -302,6 +315,7 @@ config HD
>  config HWCLOCK
>  	bool "hwclock"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The hwclock utility is used to read and set the hardware clock
>  	  on a system. This is primarily used to set the current time on
> @@ -341,6 +355,7 @@ config IPCRM
>  config IPCS
>  	bool "ipcs"
>  	default y
> +	depends on PLATFORM_LINUX
>  	select FEATURE_SUID
>  	help
>  	  The ipcs utility is used to provide information on the currently
> @@ -349,6 +364,7 @@ config IPCS
>  config LOSETUP
>  	bool "losetup"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  losetup is used to associate or detach a loop device with a regular
>  	  file or block device, and to query the status of a loop device. This
> @@ -357,6 +373,7 @@ config LOSETUP
>  config LSPCI
>  	bool "lspci"
>  	default y
> +	#depends on PLATFORM_LINUX
>  	help
>  	  lspci is a utility for displaying information about PCI buses in the
>  	  system and devices connected to them.
> @@ -366,6 +383,7 @@ config LSPCI
>  config LSUSB
>  	bool "lsusb"
>  	default y
> +	#depends on PLATFORM_LINUX
>  	help
>  	  lsusb is a utility for displaying information about USB buses in the
>  	  system and devices connected to them.
> @@ -375,6 +393,7 @@ config LSUSB
>  config MDEV
>  	bool "mdev"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  mdev is a mini-udev implementation for dynamically creating device
>  	  nodes in the /dev directory.
> @@ -473,6 +492,7 @@ config FEATURE_USE_TERMIOS
>  config MOUNT
>  	bool "mount"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  All files and filesystems in Unix are arranged into one big directory
>  	  tree. The 'mount' utility is used to graft a filesystem onto a
> @@ -555,6 +575,7 @@ config FEATURE_MOUNT_FSTAB
>  config PIVOT_ROOT
>  	bool "pivot_root"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The pivot_root utility swaps the mount points for the root filesystem
>  	  with some other mounted filesystem. This allows you to do all sorts
> @@ -582,12 +603,14 @@ config RDEV
>  config READPROFILE
>  	bool "readprofile"
>  	default y
> +	#depends on PLATFORM_LINUX
>  	help
>  	  This allows you to parse /proc/profile for basic profiling.
>  
>  config RTCWAKE
>  	bool "rtcwake"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  Enter a system sleep state until specified wakeup time.
>  
> @@ -607,6 +630,7 @@ config SCRIPTREPLAY
>  config SETARCH
>  	bool "setarch"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The linux32 utility is used to create a 32bit environment for the
>  	  specified program (usually a shell). It only makes sense to have
> @@ -616,6 +640,7 @@ config SETARCH
>  config SWAPONOFF
>  	bool "swaponoff"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  This option enables both the 'swapon' and the 'swapoff' utilities.
>  	  Once you have created some swap space using 'mkswap', you also need
> @@ -634,6 +659,7 @@ config FEATURE_SWAPON_PRI
>  config SWITCH_ROOT
>  	bool "switch_root"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  The switch_root utility is used from initramfs to select a new
>  	  root device. Under initramfs, you have to use this instead of
> @@ -653,6 +679,7 @@ config SWITCH_ROOT
>  config UMOUNT
>  	bool "umount"
>  	default y
> +	depends on PLATFORM_LINUX
>  	help
>  	  When you want to remove a mounted filesystem from its current mount
>  	  point, for example when you are shutting down the system, the

Hi,
this seems a bit of a twisted logic as BusyBox (:) is The Swiss Army Knife of Embedded Linux.
Maybe a CONFIG_BROKEN_ON_OTHER_OS_XYZ would be more coherent with
busybox's history.

Just my 2 cents.

Best regards.
Ciao,
Tito


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