From 96f71bb00b5b7bcf3e09bfa6b3c291eb3944de9d Mon Sep 17 00:00:00 2001
From: Michael Tokarev <mjt@tls.msk.ru>
Date: Mon, 30 Sep 2024 09:01:19 +0300
Subject: [PATCH] buildsys: resurrect PLATFORM_LINUX and depend on it for
 linux-specific applets

This effectively reverts the following two commits:

  commit e3b1a1fd28558f7a1b3c0ec33313bedb675be8a1
  Author: Denys Vlasenko <vda.linux@googlemail.com>
  Date:   Sat Feb 26 22:24:08 2011 +0100

    Replace "depends on PLATFORM_LINUX" with "select PLATFORM_LINUX"

and

  commit 5c69ad0ecdc18cf51b312c7c82848f4438fe1c8d
  Author: Ron Yorston <rmy@pobox.com>
  Date:   Tue Aug 4 08:24:19 2020 +0100

    build system: drop PLATFORM_LINUX

but does, hopefully, the right thing.

Original complain was that the allnoconfig turns off PLATFORM_LINUX
on which all linux-specific applets depends. Instead of setting this
config option right for linux and non-linux (initially it was just a
regular kconfig symbol, not set depending on the platform), it were
turned into something which made little sense (in the first commit),
and later dropped completely.

So introduce a dynamic kconfig symbol PLATFORM_LINUX with the value
actually depending on the target platform, so that it is not affected
by all{yes|no|whatever}config. This way, it is possible to depend on
it for linux-specific applets without breaking *config anymore.

It is done by creating a small kconfig fragment, .platform.in, to
define just PLATFORM_LINUX symbol. It is created in Makefile if
${CPP} has __linux__ #defined. And include it in the top-level Config.in.

Regenerate default config files with the new symbol.

And mark all the applets which were marked as "select PLATFORM_LINUX"
before the "build system: drop PLATFORM_LINUX" commit, as
"depends on PLATFORM_LINUX".

Also mark 2 other applets, tc and dhcprelay, as linux-only too.

This way, it is finally possible to build busybox on other platforms
without really huge efforts to maintain list of "incompatible" applets
externally, and does not put any pressure on the main development, -
the only thing needed is to keep the existing "depends on PLATFORM_LINUX"
lines.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
 Config.in                       | 4 ++++
 Makefile                        | 9 ++++++++-
 configs/TEST_nommu_defconfig    | 1 +
 configs/TEST_noprintf_defconfig | 1 +
 configs/TEST_rh9_defconfig      | 1 +
 configs/android2_defconfig      | 1 +
 configs/android_502_defconfig   | 1 +
 configs/android_defconfig       | 1 +
 configs/android_ndk_defconfig   | 1 +
 configs/cygwin_defconfig        | 1 +
 configs/freebsd_defconfig       | 1 +
 console-tools/chvt.c            | 1 +
 console-tools/deallocvt.c       | 1 +
 console-tools/dumpkmap.c        | 1 +
 console-tools/fgconsole.c       | 1 +
 console-tools/kbd_mode.c        | 1 +
 console-tools/loadfont.c        | 2 ++
 console-tools/loadkmap.c        | 1 +
 console-tools/openvt.c          | 1 +
 console-tools/setconsole.c      | 1 +
 console-tools/setkeycodes.c     | 1 +
 console-tools/setlogcons.c      | 1 +
 console-tools/showkey.c         | 1 +
 coreutils/date.c                | 1 +
 coreutils/stat.c                | 1 +
 e2fsprogs/lsattr.c              | 1 +
 klibc-utils/run-init.c          | 1 +
 libbb/Config.src                | 2 ++
 miscutils/adjtimex.c            | 1 +
 miscutils/beep.c                | 1 +
 miscutils/conspy.c              | 1 +
 miscutils/devfsd.c              | 2 ++
 miscutils/fbsplash.c            | 1 +
 miscutils/hdparm.c              | 1 +
 miscutils/i2c_tools.c           | 5 +++++
 miscutils/lsscsi.c              | 1 +
 miscutils/nandwrite.c           | 2 ++
 miscutils/partprobe.c           | 1 +
 miscutils/raidautorun.c         | 1 +
 miscutils/readahead.c           | 1 +
 miscutils/rfkill.c              | 1 +
 miscutils/rx.c                  | 1 +
 miscutils/setserial.c           | 1 +
 miscutils/ubi_tools.c           | 6 ++++++
 miscutils/ubirename.c           | 1 +
 miscutils/watchdog.c            | 1 +
 modutils/depmod.c               | 1 +
 modutils/insmod.c               | 1 +
 modutils/lsmod.c                | 1 +
 modutils/modinfo.c              | 1 +
 modutils/modprobe.c             | 1 +
 modutils/rmmod.c                | 1 +
 networking/arp.c                | 1 +
 networking/arping.c             | 1 +
 networking/brctl.c              | 1 +
 networking/ether-wake.c         | 1 +
 networking/ifconfig.c           | 1 +
 networking/ifenslave.c          | 1 +
 networking/ifplugd.c            | 1 +
 networking/ip.c                 | 7 +++++++
 networking/nameif.c             | 1 +
 networking/nbd-client.c         | 1 +
 networking/netstat.c            | 1 +
 networking/ntpd.c               | 1 +
 networking/ping.c               | 1 +
 networking/route.c              | 1 +
 networking/slattach.c           | 1 +
 networking/tc.c                 | 1 +
 networking/traceroute.c         | 1 +
 networking/tunctl.c             | 1 +
 networking/udhcp/Config.src     | 3 +++
 networking/udhcp/d6_dhcpc.c     | 1 +
 networking/vconfig.c            | 1 +
 networking/zcip.c               | 1 +
 procps/free.c                   | 1 +
 procps/ps.c                     | 1 +
 procps/uptime.c                 | 1 +
 sysklogd/klogd.c                | 1 +
 sysklogd/syslogd.c              | 1 +
 util-linux/acpid.c              | 1 +
 util-linux/blkdiscard.c         | 1 +
 util-linux/blkid.c              | 1 +
 util-linux/dmesg.c              | 1 +
 util-linux/eject.c              | 1 +
 util-linux/fatattr.c            | 1 +
 util-linux/fbset.c              | 1 +
 util-linux/fdformat.c           | 1 +
 util-linux/fdisk.c              | 1 +
 util-linux/findfs.c             | 1 +
 util-linux/freeramdisk.c        | 2 ++
 util-linux/fsfreeze.c           | 1 +
 util-linux/fstrim.c             | 1 +
 util-linux/hwclock.c            | 1 +
 util-linux/ionice.c             | 1 +
 util-linux/ipcs.c               | 1 +
 util-linux/losetup.c            | 1 +
 util-linux/lspci.c              | 1 +
 util-linux/lsusb.c              | 1 +
 util-linux/mdev.c               | 1 +
 util-linux/mkfs_ext2.c          | 2 ++
 util-linux/mkfs_minix.c         | 1 +
 util-linux/mkfs_reiser.c        | 1 +
 util-linux/mkfs_vfat.c          | 2 ++
 util-linux/mount.c              | 1 +
 util-linux/nsenter.c            | 1 +
 util-linux/pivot_root.c         | 1 +
 util-linux/readprofile.c        | 1 +
 util-linux/rtcwake.c            | 1 +
 util-linux/setarch.c            | 3 +++
 util-linux/setpriv.c            | 1 +
 util-linux/swaponoff.c          | 2 ++
 util-linux/switch_root.c        | 1 +
 util-linux/uevent.c             | 1 +
 util-linux/umount.c             | 1 +
 util-linux/unshare.c            | 1 +
 115 files changed, 152 insertions(+), 1 deletion(-)

diff --git a/Config.in b/Config.in
index ad0cd1e26..425e601bb 100644
--- a/Config.in
+++ b/Config.in
@@ -10,4 +10,7 @@ config HAVE_DOT_CONFIG
 	default y
 
+# include generated CONFIG_PLATFORM_LINUX symbol:
+source .platform.in
+
 menu "Settings"
 
@@ -324,4 +327,5 @@ 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
diff --git a/Makefile b/Makefile
index 9550c391a..14dd81231 100644
--- a/Makefile
+++ b/Makefile
@@ -362,7 +362,14 @@ scripts/basic/%: scripts_basic ;
 # This target generates Kbuild's and Config.in's from *.c files
 PHONY += gen_build_files
-gen_build_files: $(wildcard $(srctree)/*/*.c) $(wildcard $(srctree)/*/*/*.c) $(wildcard $(srctree)/embed/*)
+gen_build_files: $(wildcard $(srctree)/*/*.c) $(wildcard $(srctree)/*/*/*.c) $(wildcard $(srctree)/embed/*) .platform.in
 	$(Q)$(srctree)/scripts/gen_build_files.sh $(srctree) $(objtree)
 
+.platform.in:
+	$(Q)printf '#ifndef __linux__\nplatform_is_not_linux\n#endif' \
+	    | $(CPP) - | grep -s platform_is_not_linux \
+	  && linux=n || linux=y; \
+	printf "config PLATFORM_LINUX\n\tbool\n\tdefault $$linux\n" > $@
+MRPROPER_FILES += .platform.in
+
 # bbox: we have helpers in applets/
 # we depend on scripts_basic, since scripts/basic/fixdep
diff --git a/configs/TEST_nommu_defconfig b/configs/TEST_nommu_defconfig
index fa3e96326..9b1c82447 100644
--- a/configs/TEST_nommu_defconfig
+++ b/configs/TEST_nommu_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/TEST_noprintf_defconfig b/configs/TEST_noprintf_defconfig
index 9b378fd55..064a28955 100644
--- a/configs/TEST_noprintf_defconfig
+++ b/configs/TEST_noprintf_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/TEST_rh9_defconfig b/configs/TEST_rh9_defconfig
index 4ac62b9da..c81d051d3 100644
--- a/configs/TEST_rh9_defconfig
+++ b/configs/TEST_rh9_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/android2_defconfig b/configs/android2_defconfig
index d4b8f1616..0eef44a22 100644
--- a/configs/android2_defconfig
+++ b/configs/android2_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/android_502_defconfig b/configs/android_502_defconfig
index 104e70f23..39c2bd6ec 100644
--- a/configs/android_502_defconfig
+++ b/configs/android_502_defconfig
@@ -75,4 +75,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/android_defconfig b/configs/android_defconfig
index 92a66048a..fe5c9a614 100644
--- a/configs/android_defconfig
+++ b/configs/android_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/android_ndk_defconfig b/configs/android_ndk_defconfig
index 425593454..8374ca241 100644
--- a/configs/android_ndk_defconfig
+++ b/configs/android_ndk_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/cygwin_defconfig b/configs/cygwin_defconfig
index 61e2c2463..9a369e931 100644
--- a/configs/cygwin_defconfig
+++ b/configs/cygwin_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/configs/freebsd_defconfig b/configs/freebsd_defconfig
index 6cbd54895..dc8b6409c 100644
--- a/configs/freebsd_defconfig
+++ b/configs/freebsd_defconfig
@@ -5,4 +5,5 @@
 #
 CONFIG_HAVE_DOT_CONFIG=y
+CONFIG_PLATFORM_LINUX=y
 
 #
diff --git a/console-tools/chvt.c b/console-tools/chvt.c
index 2444e1f9d..e86586366 100644
--- a/console-tools/chvt.c
+++ b/console-tools/chvt.c
@@ -10,4 +10,5 @@
 //config:	bool "chvt (2.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program is used to change to another terminal.
diff --git a/console-tools/deallocvt.c b/console-tools/deallocvt.c
index f03ad079b..9351a5eeb 100644
--- a/console-tools/deallocvt.c
+++ b/console-tools/deallocvt.c
@@ -11,4 +11,5 @@
 //config:	bool "deallocvt (2.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program deallocates unused virtual consoles.
diff --git a/console-tools/dumpkmap.c b/console-tools/dumpkmap.c
index 957d16529..8c3ee8dba 100644
--- a/console-tools/dumpkmap.c
+++ b/console-tools/dumpkmap.c
@@ -10,4 +10,5 @@
 //config:	bool "dumpkmap (1.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program dumps the kernel's keyboard translation table to
diff --git a/console-tools/fgconsole.c b/console-tools/fgconsole.c
index b6dbc472b..85f9e66ea 100644
--- a/console-tools/fgconsole.c
+++ b/console-tools/fgconsole.c
@@ -10,4 +10,5 @@
 //config:	bool "fgconsole (1.8 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program prints active (foreground) console number.
diff --git a/console-tools/kbd_mode.c b/console-tools/kbd_mode.c
index 1ec25757d..c5088477d 100644
--- a/console-tools/kbd_mode.c
+++ b/console-tools/kbd_mode.c
@@ -12,4 +12,5 @@
 //config:	bool "kbd_mode (4.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program reports and sets keyboard mode.
diff --git a/console-tools/loadfont.c b/console-tools/loadfont.c
index cec5e19cd..eb7c2ba55 100644
--- a/console-tools/loadfont.c
+++ b/console-tools/loadfont.c
@@ -13,4 +13,5 @@
 //config:	bool "loadfont (5.4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program loads a console font from standard input.
@@ -19,4 +20,5 @@
 //config:	bool "setfont (24 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Allows to load console screen map. Useful for i18n.
diff --git a/console-tools/loadkmap.c b/console-tools/loadkmap.c
index 22e918dbf..38b3c05e4 100644
--- a/console-tools/loadkmap.c
+++ b/console-tools/loadkmap.c
@@ -10,4 +10,5 @@
 //config:	bool "loadkmap (2.1 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program loads a keyboard translation table from
diff --git a/console-tools/openvt.c b/console-tools/openvt.c
index c35617eb8..642ac4c19 100644
--- a/console-tools/openvt.c
+++ b/console-tools/openvt.c
@@ -11,4 +11,5 @@
 //config:	bool "openvt (7.4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program is used to start a command on an unused
diff --git a/console-tools/setconsole.c b/console-tools/setconsole.c
index 4e625890a..062ca4184 100644
--- a/console-tools/setconsole.c
+++ b/console-tools/setconsole.c
@@ -11,4 +11,5 @@
 //config:	bool "setconsole (3.8 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Redirect writes to /dev/console to another device,
diff --git a/console-tools/setkeycodes.c b/console-tools/setkeycodes.c
index 03accec2f..52ac762e9 100644
--- a/console-tools/setkeycodes.c
+++ b/console-tools/setkeycodes.c
@@ -12,4 +12,5 @@
 //config:	bool "setkeycodes (2.4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program loads entries into the kernel's scancode-to-keycode
diff --git a/console-tools/setlogcons.c b/console-tools/setlogcons.c
index a94c0035a..926b6ed68 100644
--- a/console-tools/setlogcons.c
+++ b/console-tools/setlogcons.c
@@ -12,4 +12,5 @@
 //config:	bool "setlogcons (2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This program redirects the output console of kernel messages.
diff --git a/console-tools/showkey.c b/console-tools/showkey.c
index 87532a8ac..3dcd5948f 100644
--- a/console-tools/showkey.c
+++ b/console-tools/showkey.c
@@ -10,4 +10,5 @@
 //config:	bool "showkey (4.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Shows keys pressed.
diff --git a/coreutils/date.c b/coreutils/date.c
index 3a89b6caf..578d923ca 100644
--- a/coreutils/date.c
+++ b/coreutils/date.c
@@ -38,4 +38,5 @@
 //config:	default n # stat's nanosecond field is a bit non-portable
 //config:	depends on DATE
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Support %[num]N format specifier. Adds ~250 bytes of code.
diff --git a/coreutils/stat.c b/coreutils/stat.c
index 2c2909e7e..dd4b36fa0 100644
--- a/coreutils/stat.c
+++ b/coreutils/stat.c
@@ -32,4 +32,5 @@
 //config:	default y
 //config:	depends on STAT
+//config:	depends on PLATFORM_LINUX # statfs()
 //config:	help
 //config:	Without this, stat will not support the '-f' option to display
diff --git a/e2fsprogs/lsattr.c b/e2fsprogs/lsattr.c
index f678f72fb..e4cdebe43 100644
--- a/e2fsprogs/lsattr.c
+++ b/e2fsprogs/lsattr.c
@@ -13,4 +13,5 @@
 //config:	bool "lsattr (5.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	lsattr lists the file attributes on a second extended file system.
diff --git a/klibc-utils/run-init.c b/klibc-utils/run-init.c
index 5eadd9fc0..9ea51f188 100644
--- a/klibc-utils/run-init.c
+++ b/klibc-utils/run-init.c
@@ -9,4 +9,5 @@
 //config:	bool "run-init (8 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The run-init utility is used from initramfs to select a new
diff --git a/libbb/Config.src b/libbb/Config.src
index b980f19a9..418d03deb 100644
--- a/libbb/Config.src
+++ b/libbb/Config.src
@@ -119,4 +119,5 @@ config FEATURE_USE_SENDFILE
 	bool "Use sendfile system call"
 	default y
+	depends on PLATFORM_LINUX
 	help
 	When enabled, busybox will use the kernel sendfile() function
@@ -141,4 +142,5 @@ config MONOTONIC_SYSCALL
 	bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
 	default y
+	depends on PLATFORM_LINUX
 	help
 	Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
diff --git a/miscutils/adjtimex.c b/miscutils/adjtimex.c
index fb478c0c9..578ddd88a 100644
--- a/miscutils/adjtimex.c
+++ b/miscutils/adjtimex.c
@@ -14,4 +14,5 @@
 //config:	bool "adjtimex (4.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Adjtimex reads and optionally sets adjustment parameters for
diff --git a/miscutils/beep.c b/miscutils/beep.c
index 724a666c8..48826eabf 100644
--- a/miscutils/beep.c
+++ b/miscutils/beep.c
@@ -10,4 +10,5 @@
 //config:	bool "beep (2.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The beep applets beeps in a given freq/Hz.
diff --git a/miscutils/conspy.c b/miscutils/conspy.c
index 21a498d0f..df926cc20 100644
--- a/miscutils/conspy.c
+++ b/miscutils/conspy.c
@@ -13,4 +13,5 @@
 //config:	bool "conspy (10 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	A text-mode VNC like program for Linux virtual terminals.
diff --git a/miscutils/devfsd.c b/miscutils/devfsd.c
index 36b491595..f7e9481ac 100644
--- a/miscutils/devfsd.c
+++ b/miscutils/devfsd.c
@@ -57,4 +57,5 @@
 //config:	bool "devfsd (obsolete)"
 //config:	default n
+//config:	depends on PLATFORM_LINUX
 //config:	select FEATURE_SYSLOG
 //config:	help
@@ -99,4 +100,5 @@
 //config:	bool "Use devfs names for all devices (obsolete)"
 //config:	default n
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	This is obsolete and should NOT be used anymore.
diff --git a/miscutils/fbsplash.c b/miscutils/fbsplash.c
index 2934d8eb7..a913428d1 100644
--- a/miscutils/fbsplash.c
+++ b/miscutils/fbsplash.c
@@ -24,4 +24,5 @@
 //config:	bool "fbsplash (26 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Shows splash image and progress bar on framebuffer device.
diff --git a/miscutils/hdparm.c b/miscutils/hdparm.c
index 83e2f8d53..f72352bd9 100644
--- a/miscutils/hdparm.c
+++ b/miscutils/hdparm.c
@@ -15,4 +15,5 @@
 //config:	bool "hdparm (25 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Get/Set hard drive parameters. Primarily intended for ATA
diff --git a/miscutils/i2c_tools.c b/miscutils/i2c_tools.c
index 5f41a72ec..dba7498a5 100644
--- a/miscutils/i2c_tools.c
+++ b/miscutils/i2c_tools.c
@@ -12,4 +12,5 @@
 //config:	bool "i2cget (5.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Read from I2C/SMBus chip registers.
@@ -18,4 +19,5 @@
 //config:	bool "i2cset (6.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Set I2C registers.
@@ -24,4 +26,5 @@
 //config:	bool "i2cdump (7.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Examine I2C registers.
@@ -30,4 +33,5 @@
 //config:	bool "i2cdetect (7.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Detect I2C chips.
@@ -36,4 +40,5 @@
 //config:	bool "i2ctransfer (5.5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Send user-defined I2C messages in one transfer.
diff --git a/miscutils/lsscsi.c b/miscutils/lsscsi.c
index 9f677ba28..192f508ee 100644
--- a/miscutils/lsscsi.c
+++ b/miscutils/lsscsi.c
@@ -10,4 +10,5 @@
 //config:	bool "lsscsi (2.9 kb)"
 //config:	default y
+//config:	#depends on PLATFORM_LINUX
 //config:	help
 //config:	lsscsi is a utility for displaying information about SCSI buses in the
diff --git a/miscutils/nandwrite.c b/miscutils/nandwrite.c
index 6ac92aa1f..43cc0e259 100644
--- a/miscutils/nandwrite.c
+++ b/miscutils/nandwrite.c
@@ -11,4 +11,5 @@
 //config:	bool "nandwrite (5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Write to the specified MTD device, with bad blocks awareness
@@ -17,4 +18,5 @@
 //config:	bool "nanddump (5.4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Dump the content of raw NAND chip
diff --git a/miscutils/partprobe.c b/miscutils/partprobe.c
index b21c6241b..87949ad0f 100644
--- a/miscutils/partprobe.c
+++ b/miscutils/partprobe.c
@@ -8,4 +8,5 @@
 //config:	bool "partprobe (3.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Ask kernel to rescan partition table.
diff --git a/miscutils/raidautorun.c b/miscutils/raidautorun.c
index 8e70b5a51..04aaef6c8 100644
--- a/miscutils/raidautorun.c
+++ b/miscutils/raidautorun.c
@@ -10,4 +10,5 @@
 //config:	bool "raidautorun (1.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	raidautorun tells the kernel md driver to
diff --git a/miscutils/readahead.c b/miscutils/readahead.c
index a9e672617..4f73c04b3 100644
--- a/miscutils/readahead.c
+++ b/miscutils/readahead.c
@@ -14,4 +14,5 @@
 //config:	default y
 //config:	depends on LFS
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Preload the files listed on the command line into RAM cache so that
diff --git a/miscutils/rfkill.c b/miscutils/rfkill.c
index 9d91ea82f..9d8921b87 100644
--- a/miscutils/rfkill.c
+++ b/miscutils/rfkill.c
@@ -10,4 +10,5 @@
 //config:	bool "rfkill (4.4 kb)"
 //config:	default n # doesn't build on Ubuntu 9.04
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Enable/disable wireless devices.
diff --git a/miscutils/rx.c b/miscutils/rx.c
index 3052bdef7..c2bdebe19 100644
--- a/miscutils/rx.c
+++ b/miscutils/rx.c
@@ -18,4 +18,5 @@
 //config:	bool "rx (3.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Receive files using the Xmodem protocol.
diff --git a/miscutils/setserial.c b/miscutils/setserial.c
index 5fb93d226..9e3e73630 100644
--- a/miscutils/setserial.c
+++ b/miscutils/setserial.c
@@ -11,4 +11,5 @@
 //config:	bool "setserial (7.1 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Retrieve or set Linux serial port.
diff --git a/miscutils/ubi_tools.c b/miscutils/ubi_tools.c
index 8de444eb2..c35328030 100644
--- a/miscutils/ubi_tools.c
+++ b/miscutils/ubi_tools.c
@@ -7,4 +7,5 @@
 //config:	bool "ubiattach (4.5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Attach MTD device to an UBI device.
@@ -13,4 +14,5 @@
 //config:	bool "ubidetach (4.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Detach MTD device from an UBI device.
@@ -19,4 +21,5 @@
 //config:	bool "ubimkvol (5.5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Create a UBI volume.
@@ -25,4 +28,5 @@
 //config:	bool "ubirmvol (5.1 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Delete a UBI volume.
@@ -31,4 +35,5 @@
 //config:	bool "ubirsvol (4.4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Resize a UBI volume.
@@ -37,4 +42,5 @@
 //config:	bool "ubiupdatevol (5.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Update a UBI volume.
diff --git a/miscutils/ubirename.c b/miscutils/ubirename.c
index af94354f3..c07390b5f 100644
--- a/miscutils/ubirename.c
+++ b/miscutils/ubirename.c
@@ -10,4 +10,5 @@
 //config:	bool "ubirename (2.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Utility to rename UBI volumes
diff --git a/miscutils/watchdog.c b/miscutils/watchdog.c
index db1d27b48..eef220b59 100644
--- a/miscutils/watchdog.c
+++ b/miscutils/watchdog.c
@@ -12,4 +12,5 @@
 //config:	bool "watchdog (5.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The watchdog utility is used with hardware or software watchdog
diff --git a/modutils/depmod.c b/modutils/depmod.c
index bb42bbefe..14dd12a07 100644
--- a/modutils/depmod.c
+++ b/modutils/depmod.c
@@ -11,4 +11,5 @@
 //config:	bool "depmod (27 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	depmod generates modules.dep (and potentially modules.alias
diff --git a/modutils/insmod.c b/modutils/insmod.c
index 8f7163e25..9b26e27a3 100644
--- a/modutils/insmod.c
+++ b/modutils/insmod.c
@@ -10,4 +10,5 @@
 //config:	bool "insmod (22 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	insmod is used to load specified modules in the running kernel.
diff --git a/modutils/lsmod.c b/modutils/lsmod.c
index d9df5ad81..17905fcf0 100644
--- a/modutils/lsmod.c
+++ b/modutils/lsmod.c
@@ -11,4 +11,5 @@
 //config:	bool "lsmod (2.1 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	lsmod is used to display a list of loaded modules.
diff --git a/modutils/modinfo.c b/modutils/modinfo.c
index 0a86c3296..099f645c1 100644
--- a/modutils/modinfo.c
+++ b/modutils/modinfo.c
@@ -9,4 +9,5 @@
 //config:	bool "modinfo (24 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Show information about a Linux Kernel module
diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index 543f53e99..48380be69 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -11,4 +11,5 @@
 //config:	bool "modprobe (27 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Handle the loading of modules, and their dependencies on a high
diff --git a/modutils/rmmod.c b/modutils/rmmod.c
index fe86a6766..edb44a1e9 100644
--- a/modutils/rmmod.c
+++ b/modutils/rmmod.c
@@ -11,4 +11,5 @@
 //config:	bool "rmmod (3.5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	rmmod is used to unload specified modules from the kernel.
diff --git a/networking/arp.c b/networking/arp.c
index 16783ab95..e162af136 100644
--- a/networking/arp.c
+++ b/networking/arp.c
@@ -16,4 +16,5 @@
 //config:	bool "arp (10 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Manipulate the system ARP cache.
diff --git a/networking/arping.c b/networking/arping.c
index 967f1ac04..62b7adcb0 100644
--- a/networking/arping.c
+++ b/networking/arping.c
@@ -9,4 +9,5 @@
 //config:	bool "arping (9.1 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Ping hosts by ARP packets.
diff --git a/networking/brctl.c b/networking/brctl.c
index 0f8dc2f7a..f593d2664 100644
--- a/networking/brctl.c
+++ b/networking/brctl.c
@@ -13,4 +13,5 @@
 //config:	bool "brctl (9.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Manage ethernet bridges.
diff --git a/networking/ether-wake.c b/networking/ether-wake.c
index 68df19361..570f013f8 100644
--- a/networking/ether-wake.c
+++ b/networking/ether-wake.c
@@ -67,4 +67,5 @@
 //config:	bool "ether-wake (5.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Send a magic packet to wake up sleeping machines.
diff --git a/networking/ifconfig.c b/networking/ifconfig.c
index 9ee232a66..42a1ac8bc 100644
--- a/networking/ifconfig.c
+++ b/networking/ifconfig.c
@@ -28,4 +28,5 @@
 //config:	bool "ifconfig (12 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Ifconfig is used to configure the kernel-resident network interfaces.
diff --git a/networking/ifenslave.c b/networking/ifenslave.c
index bdb9894be..75f395e72 100644
--- a/networking/ifenslave.c
+++ b/networking/ifenslave.c
@@ -101,4 +101,5 @@
 //config:	bool "ifenslave (13 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Userspace application to bind several interfaces
diff --git a/networking/ifplugd.c b/networking/ifplugd.c
index a776d4121..b7aa0e820 100644
--- a/networking/ifplugd.c
+++ b/networking/ifplugd.c
@@ -10,4 +10,5 @@
 //config:	bool "ifplugd (11 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Network interface plug detection daemon.
diff --git a/networking/ip.c b/networking/ip.c
index 02f93adbf..25868c933 100644
--- a/networking/ip.c
+++ b/networking/ip.c
@@ -12,4 +12,5 @@
 //config:	bool "ip (35 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The "ip" applet is a TCP/IP interface configuration and routing
@@ -23,4 +24,5 @@
 //config:	default y
 //config:	select FEATURE_IP_ADDRESS
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Short form of "ip addr"
@@ -30,4 +32,5 @@
 //config:	default y
 //config:	select FEATURE_IP_LINK
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Short form of "ip link"
@@ -37,4 +40,5 @@
 //config:	default y
 //config:	select FEATURE_IP_ROUTE
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Short form of "ip route"
@@ -44,4 +48,5 @@
 //config:	default y
 //config:	select FEATURE_IP_TUNNEL
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Short form of "ip tunnel"
@@ -51,4 +56,5 @@
 //config:	default y
 //config:	select FEATURE_IP_RULE
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Short form of "ip rule"
@@ -58,4 +64,5 @@
 //config:	default y
 //config:	select FEATURE_IP_NEIGH
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Short form of "ip neigh"
diff --git a/networking/nameif.c b/networking/nameif.c
index 461745c70..65a80e500 100644
--- a/networking/nameif.c
+++ b/networking/nameif.c
@@ -13,4 +13,5 @@
 //config:	bool "nameif (6.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	select FEATURE_SYSLOG
 //config:	help
diff --git a/networking/nbd-client.c b/networking/nbd-client.c
index 556fa8c97..1489e5452 100644
--- a/networking/nbd-client.c
+++ b/networking/nbd-client.c
@@ -7,4 +7,5 @@
 //config:	bool "nbd-client (6.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Network block device client
diff --git a/networking/netstat.c b/networking/netstat.c
index 807800a62..dadc54877 100644
--- a/networking/netstat.c
+++ b/networking/netstat.c
@@ -17,4 +17,5 @@
 //config:	bool "netstat (10 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	netstat prints information about the Linux networking subsystem.
diff --git a/networking/ntpd.c b/networking/ntpd.c
index dcbdb8e60..bd8f66ae4 100644
--- a/networking/ntpd.c
+++ b/networking/ntpd.c
@@ -44,4 +44,5 @@
 //config:	bool "ntpd (23 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The NTP client/server daemon.
diff --git a/networking/ping.c b/networking/ping.c
index b7e6955a9..189029785 100644
--- a/networking/ping.c
+++ b/networking/ping.c
@@ -28,4 +28,5 @@
 //config:	bool "ping (10 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	ping uses the ICMP protocol's mandatory ECHO_REQUEST datagram to
diff --git a/networking/route.c b/networking/route.c
index 6e2d30cfd..c41908e88 100644
--- a/networking/route.c
+++ b/networking/route.c
@@ -28,4 +28,5 @@
 //config:	bool "route (9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Route displays or manipulates the kernel's IP routing tables.
diff --git a/networking/slattach.c b/networking/slattach.c
index 2f5cd15ab..eb7f8bf76 100644
--- a/networking/slattach.c
+++ b/networking/slattach.c
@@ -16,4 +16,5 @@
 //config:	bool "slattach (6.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	slattach configures serial line as SLIP network interface.
diff --git a/networking/tc.c b/networking/tc.c
index 3a79fd2d9..c70d47b55 100644
--- a/networking/tc.c
+++ b/networking/tc.c
@@ -10,4 +10,5 @@
 //config:	bool "tc (8.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Show / manipulate traffic control settings
diff --git a/networking/traceroute.c b/networking/traceroute.c
index 767f537ce..f2da7e860 100644
--- a/networking/traceroute.c
+++ b/networking/traceroute.c
@@ -213,4 +213,5 @@
 //config:	bool "traceroute (11 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Utility to trace the route of IP packets.
diff --git a/networking/tunctl.c b/networking/tunctl.c
index c17302eac..37a049e7a 100644
--- a/networking/tunctl.c
+++ b/networking/tunctl.c
@@ -13,4 +13,5 @@
 //config:	bool "tunctl (6.4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	tunctl creates or deletes tun devices.
diff --git a/networking/udhcp/Config.src b/networking/udhcp/Config.src
index 4b9259eb8..e346a5526 100644
--- a/networking/udhcp/Config.src
+++ b/networking/udhcp/Config.src
@@ -7,4 +7,5 @@ config UDHCPD
 	bool "udhcpd (21 kb)"
 	default y
+	depends on PLATFORM_LINUX
 	help
 	udhcpd is a DHCP server geared primarily toward embedded systems,
@@ -61,4 +62,5 @@ config DHCPRELAY
 	bool "dhcprelay (5.5 kb)"
 	default y
+	depends on PLATFORM_LINUX
 	help
 	dhcprelay listens for DHCP requests on one or more interfaces
@@ -69,4 +71,5 @@ config UDHCPC
 	bool "udhcpc (24 kb)"
 	default y
+	depends on PLATFORM_LINUX
 	help
 	udhcpc is a DHCP client geared primarily toward embedded systems,
diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c
index 79cef1999..7f0f4225c 100644
--- a/networking/udhcp/d6_dhcpc.c
+++ b/networking/udhcp/d6_dhcpc.c
@@ -11,4 +11,5 @@
 //config:	default y
 //config:	depends on FEATURE_IPV6
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	udhcpc6 is a DHCPv6 client
diff --git a/networking/vconfig.c b/networking/vconfig.c
index 77fbe3a40..b482f4b87 100644
--- a/networking/vconfig.c
+++ b/networking/vconfig.c
@@ -10,4 +10,5 @@
 //config:	bool "vconfig (2.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Creates, removes, and configures VLAN interfaces
diff --git a/networking/zcip.c b/networking/zcip.c
index 137d46e13..605a3c884 100644
--- a/networking/zcip.c
+++ b/networking/zcip.c
@@ -17,4 +17,5 @@
 //config:	bool "zcip (8.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	select FEATURE_SYSLOG
 //config:	help
diff --git a/procps/free.c b/procps/free.c
index d0c849b79..41353a6df 100644
--- a/procps/free.c
+++ b/procps/free.c
@@ -10,4 +10,5 @@
 //config:	bool "free (3.8 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX #sysinfo()
 //config:	help
 //config:	free displays the total amount of free and used physical and swap
diff --git a/procps/ps.c b/procps/ps.c
index 5b521aebd..cd434ecfb 100644
--- a/procps/ps.c
+++ b/procps/ps.c
@@ -36,4 +36,5 @@
 //config:	default y
 //config:	depends on (PS || MINIPS) && DESKTOP
+//config:	depends on PLATFORM_LINUX
 //config:
 //config:config FEATURE_PS_UNUSUAL_SYSTEMS
diff --git a/procps/uptime.c b/procps/uptime.c
index aec7bd7d1..6802ca576 100644
--- a/procps/uptime.c
+++ b/procps/uptime.c
@@ -15,4 +15,5 @@
 //config:	bool "uptime (4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX #sysinfo()
 //config:	help
 //config:	uptime gives a one line display of the current time, how long
diff --git a/sysklogd/klogd.c b/sysklogd/klogd.c
index d4f2c0c8f..7c64e2557 100644
--- a/sysklogd/klogd.c
+++ b/sysklogd/klogd.c
@@ -34,4 +34,5 @@
 //config:	default y
 //config:	depends on KLOGD
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The klogd applet supports two interfaces for reading
diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
index 7558051f0..72480ec47 100644
--- a/sysklogd/syslogd.c
+++ b/sysklogd/syslogd.c
@@ -110,4 +110,5 @@
 //config:	default y
 //config:	depends on SYSLOGD
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	When you enable this feature, the syslogd utility will
diff --git a/util-linux/acpid.c b/util-linux/acpid.c
index 5c0bb1768..8da349069 100644
--- a/util-linux/acpid.c
+++ b/util-linux/acpid.c
@@ -10,4 +10,5 @@
 //config:	bool "acpid (9.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	acpid listens to ACPI events coming either in textual form from
diff --git a/util-linux/blkdiscard.c b/util-linux/blkdiscard.c
index 70fd34af3..74a1f4826 100644
--- a/util-linux/blkdiscard.c
+++ b/util-linux/blkdiscard.c
@@ -9,4 +9,5 @@
 //config:	bool "blkdiscard (4.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	blkdiscard discards sectors on a given device.
diff --git a/util-linux/blkid.c b/util-linux/blkid.c
index 4a820771f..cb96c178b 100644
--- a/util-linux/blkid.c
+++ b/util-linux/blkid.c
@@ -10,4 +10,5 @@
 //config:	bool "blkid (12 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	select VOLUMEID
 //config:	help
diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c
index 5d8f01a64..06b5d998e 100644
--- a/util-linux/dmesg.c
+++ b/util-linux/dmesg.c
@@ -12,4 +12,5 @@
 //config:	bool "dmesg (3.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	dmesg is used to examine or control the kernel ring buffer. When the
diff --git a/util-linux/eject.c b/util-linux/eject.c
index b9813262b..c02eee86e 100644
--- a/util-linux/eject.c
+++ b/util-linux/eject.c
@@ -16,4 +16,5 @@
 //config:	bool "eject (4.3 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Used to eject cdroms. (defaults to /dev/cdrom)
diff --git a/util-linux/fatattr.c b/util-linux/fatattr.c
index d8ea4553d..d704cb062 100644
--- a/util-linux/fatattr.c
+++ b/util-linux/fatattr.c
@@ -12,4 +12,5 @@
 //config:	bool "fatattr (2.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	fatattr lists or changes the file attributes on a fat file system.
diff --git a/util-linux/fbset.c b/util-linux/fbset.c
index 7e88c8313..85bca161f 100644
--- a/util-linux/fbset.c
+++ b/util-linux/fbset.c
@@ -15,4 +15,5 @@
 //config:	bool "fbset (6.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	fbset is used to show or change the settings of a Linux frame buffer
diff --git a/util-linux/fdformat.c b/util-linux/fdformat.c
index 0f8743020..482078335 100644
--- a/util-linux/fdformat.c
+++ b/util-linux/fdformat.c
@@ -9,4 +9,5 @@
 //config:	bool "fdformat (4.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	fdformat is used to low-level format a floppy disk.
diff --git a/util-linux/fdisk.c b/util-linux/fdisk.c
index 96e2abffe..f33832cb9 100644
--- a/util-linux/fdisk.c
+++ b/util-linux/fdisk.c
@@ -11,4 +11,5 @@
 //config:	bool "fdisk (31 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The fdisk utility is used to divide hard disks into one or more
diff --git a/util-linux/findfs.c b/util-linux/findfs.c
index ec0375dfb..363d1a2f7 100644
--- a/util-linux/findfs.c
+++ b/util-linux/findfs.c
@@ -11,4 +11,5 @@
 //config:	bool "findfs (11 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	select VOLUMEID
 //config:	help
diff --git a/util-linux/freeramdisk.c b/util-linux/freeramdisk.c
index 88f50c51a..afd843dd6 100644
--- a/util-linux/freeramdisk.c
+++ b/util-linux/freeramdisk.c
@@ -12,4 +12,5 @@
 //config:	bool "fdflush (1.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	fdflush is only needed when changing media on slightly-broken
@@ -24,4 +25,5 @@
 //config:	bool "freeramdisk (1.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Linux allows you to create ramdisks. This utility allows you to
diff --git a/util-linux/fsfreeze.c b/util-linux/fsfreeze.c
index 66b6fd06f..46f30653e 100644
--- a/util-linux/fsfreeze.c
+++ b/util-linux/fsfreeze.c
@@ -8,4 +8,5 @@
 //config:	bool "fsfreeze (3.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	select LONG_OPTS
 //config:	help
diff --git a/util-linux/fstrim.c b/util-linux/fstrim.c
index c28e67270..c121ea3cf 100644
--- a/util-linux/fstrim.c
+++ b/util-linux/fstrim.c
@@ -11,4 +11,5 @@
 //config:	bool "fstrim (4.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Discard unused blocks on a mounted filesystem.
diff --git a/util-linux/hwclock.c b/util-linux/hwclock.c
index c3fd0eb57..962488575 100644
--- a/util-linux/hwclock.c
+++ b/util-linux/hwclock.c
@@ -10,4 +10,5 @@
 //config:	bool "hwclock (5.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	select LONG_OPTS
 //config:	help
diff --git a/util-linux/ionice.c b/util-linux/ionice.c
index b768c8322..6e587966f 100644
--- a/util-linux/ionice.c
+++ b/util-linux/ionice.c
@@ -10,4 +10,5 @@
 //config:	bool "ionice (4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Set/set program io scheduling class and priority
diff --git a/util-linux/ipcs.c b/util-linux/ipcs.c
index f0e5c5a7f..1dd1438e4 100644
--- a/util-linux/ipcs.c
+++ b/util-linux/ipcs.c
@@ -11,4 +11,5 @@
 //config:	bool "ipcs (12 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The ipcs utility is used to provide information on the currently
diff --git a/util-linux/losetup.c b/util-linux/losetup.c
index 9b43d20b3..e8621c548 100644
--- a/util-linux/losetup.c
+++ b/util-linux/losetup.c
@@ -10,4 +10,5 @@
 //config:	bool "losetup (6.2 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	losetup is used to associate or detach a loop device with a regular
diff --git a/util-linux/lspci.c b/util-linux/lspci.c
index b38b46be3..7734be187 100644
--- a/util-linux/lspci.c
+++ b/util-linux/lspci.c
@@ -10,4 +10,5 @@
 //config:	bool "lspci (6.4 kb)"
 //config:	default y
+//config:	#depends on PLATFORM_LINUX
 //config:	help
 //config:	lspci is a utility for displaying information about PCI buses in the
diff --git a/util-linux/lsusb.c b/util-linux/lsusb.c
index 0a9e505f4..ac9524b94 100644
--- a/util-linux/lsusb.c
+++ b/util-linux/lsusb.c
@@ -10,4 +10,5 @@
 //config:	bool "lsusb (4.4 kb)"
 //config:	default y
+//config:	#depends on PLATFORM_LINUX
 //config:	help
 //config:	lsusb is a utility for displaying information about USB buses in the
diff --git a/util-linux/mdev.c b/util-linux/mdev.c
index e98d46743..d7911feef 100644
--- a/util-linux/mdev.c
+++ b/util-linux/mdev.c
@@ -11,4 +11,5 @@
 //config:	bool "mdev (20 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	mdev is a mini-udev implementation for dynamically creating device
diff --git a/util-linux/mkfs_ext2.c b/util-linux/mkfs_ext2.c
index fcf374b2d..5b9a39793 100644
--- a/util-linux/mkfs_ext2.c
+++ b/util-linux/mkfs_ext2.c
@@ -11,4 +11,5 @@
 //config:	bool "mke2fs (10 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Utility to create EXT2 filesystems.
@@ -17,4 +18,5 @@
 //config:	bool "mkfs.ext2 (10 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Alias to "mke2fs".
diff --git a/util-linux/mkfs_minix.c b/util-linux/mkfs_minix.c
index 3c72e5419..0dcacfe79 100644
--- a/util-linux/mkfs_minix.c
+++ b/util-linux/mkfs_minix.c
@@ -66,4 +66,5 @@
 //config:	bool "mkfs.minix (10 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The minix filesystem is a nice, small, compact, read-write filesystem
diff --git a/util-linux/mkfs_reiser.c b/util-linux/mkfs_reiser.c
index 44a743147..22ffcd346 100644
--- a/util-linux/mkfs_reiser.c
+++ b/util-linux/mkfs_reiser.c
@@ -10,4 +10,5 @@
 //config:	bool "mkfs_reiser"
 //config:	default n
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Utility to create ReiserFS filesystems.
diff --git a/util-linux/mkfs_vfat.c b/util-linux/mkfs_vfat.c
index 7ae4fd520..ac022e7f3 100644
--- a/util-linux/mkfs_vfat.c
+++ b/util-linux/mkfs_vfat.c
@@ -11,4 +11,5 @@
 //config:	bool "mkdosfs (7.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Utility to create FAT32 filesystems.
@@ -17,4 +18,5 @@
 //config:	bool "mkfs.vfat (7.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Alias to "mkdosfs".
diff --git a/util-linux/mount.c b/util-linux/mount.c
index d0f0ae1ad..032301e89 100644
--- a/util-linux/mount.c
+++ b/util-linux/mount.c
@@ -21,4 +21,5 @@
 //config:	bool "mount (24 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	All files and filesystems in Unix are arranged into one big directory
diff --git a/util-linux/nsenter.c b/util-linux/nsenter.c
index 9a250e43c..07c6380c8 100644
--- a/util-linux/nsenter.c
+++ b/util-linux/nsenter.c
@@ -10,4 +10,5 @@
 //config:	bool "nsenter (6.8 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Run program with namespaces of other processes.
diff --git a/util-linux/pivot_root.c b/util-linux/pivot_root.c
index b65e914cf..953498ff6 100644
--- a/util-linux/pivot_root.c
+++ b/util-linux/pivot_root.c
@@ -12,4 +12,5 @@
 //config:	bool "pivot_root (1.4 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The pivot_root utility swaps the mount points for the root filesystem
diff --git a/util-linux/readprofile.c b/util-linux/readprofile.c
index a7e4dcb73..f81109738 100644
--- a/util-linux/readprofile.c
+++ b/util-linux/readprofile.c
@@ -35,4 +35,5 @@
 //config:	bool "readprofile (7.5 kb)"
 //config:	default y
+//config:	#depends on PLATFORM_LINUX
 //config:	help
 //config:	This allows you to parse /proc/profile for basic profiling.
diff --git a/util-linux/rtcwake.c b/util-linux/rtcwake.c
index a8dfab064..1ac2cf6af 100644
--- a/util-linux/rtcwake.c
+++ b/util-linux/rtcwake.c
@@ -26,4 +26,5 @@
 //config:	bool "rtcwake (7.5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Enter a system sleep state until specified wakeup time.
diff --git a/util-linux/setarch.c b/util-linux/setarch.c
index 68b7c663c..b15d2b9eb 100644
--- a/util-linux/setarch.c
+++ b/util-linux/setarch.c
@@ -10,4 +10,5 @@
 //config:	bool "setarch (3.8 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The linux32 utility is used to create a 32bit environment for the
@@ -19,4 +20,5 @@
 //config:	bool "linux32 (3.6 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Alias to "setarch linux32".
@@ -25,4 +27,5 @@
 //config:	bool "linux64 (3.5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Alias to "setarch linux64".
diff --git a/util-linux/setpriv.c b/util-linux/setpriv.c
index ee038516d..088e11376 100644
--- a/util-linux/setpriv.c
+++ b/util-linux/setpriv.c
@@ -10,4 +10,5 @@
 //config:	bool "setpriv (6.9 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	select LONG_OPTS
 //config:	help
diff --git a/util-linux/swaponoff.c b/util-linux/swaponoff.c
index e2ff4b5cc..4caa28935 100644
--- a/util-linux/swaponoff.c
+++ b/util-linux/swaponoff.c
@@ -10,4 +10,5 @@
 //config:	bool "swapon (15 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	Once you have created some swap space using 'mkswap', you also need
@@ -36,4 +37,5 @@
 //config:	bool "swapoff (14 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:
 //config:config FEATURE_SWAPONOFF_LABEL
diff --git a/util-linux/switch_root.c b/util-linux/switch_root.c
index 14139736e..c33783081 100644
--- a/util-linux/switch_root.c
+++ b/util-linux/switch_root.c
@@ -10,4 +10,5 @@
 //config:	bool "switch_root (5.7 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	The switch_root utility is used from initramfs to select a new
diff --git a/util-linux/uevent.c b/util-linux/uevent.c
index 2193eb0f2..7a09ef65a 100644
--- a/util-linux/uevent.c
+++ b/util-linux/uevent.c
@@ -7,4 +7,5 @@
 //config:	bool "uevent (3.5 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	uevent is a netlink listener for kernel uevent notifications
diff --git a/util-linux/umount.c b/util-linux/umount.c
index f5c97a034..3eadb54f0 100644
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -11,4 +11,5 @@
 //config:	bool "umount (5.1 kb)"
 //config:	default y
+//config:	depends on PLATFORM_LINUX
 //config:	help
 //config:	When you want to remove a mounted filesystem from its current mount
diff --git a/util-linux/unshare.c b/util-linux/unshare.c
index a9f56f388..7443a7c69 100644
--- a/util-linux/unshare.c
+++ b/util-linux/unshare.c
@@ -11,4 +11,5 @@
 //config:	default y
 //config:	depends on !NOMMU
+//config:	depends on PLATFORM_LINUX
 //config:	select LONG_OPTS
 //config:	help
-- 
2.39.5