################################################################################
  #
  # skeleton
  #
  ################################################################################
  
  # The skeleton can't depend on the toolchain, since all packages depends on the
  # skeleton and the toolchain is a target package, as is skeleton.
  # Hence, skeleton would depends on the toolchain and the toolchain would depend
  # on skeleton.
  SKELETON_ADD_TOOLCHAIN_DEPENDENCY = NO
  
  # The skeleton also handles the merged /usr case in the sysroot
  SKELETON_INSTALL_STAGING = YES
  
  ifeq ($(BR2_ROOTFS_SKELETON_CUSTOM),y)
  
  SKELETON_PATH = $(call qstrip,$(BR2_ROOTFS_SKELETON_CUSTOM_PATH))
  
  ifeq ($(BR_BUILDING),y)
  ifeq ($(SKELETON_PATH),)
  $(error No path specified for the custom skeleton)
  endif
  endif
  
  ifeq ($(BR2_ROOTFS_MERGED_USR),y)
  
  # Ensure the user has prepared a merged /usr.
  #
  # Extract the inode numbers for all of those directories. In case any is
  # a symlink, we want to get the inode of the pointed-to directory, so we
  # append '/.' to be sure we get the target directory. Since the symlinks
  # can be anyway (/bin -> /usr/bin or /usr/bin -> /bin), we do that for
  # all of them.
  #
  SKELETON_LIB_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/lib/.)
  SKELETON_BIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/bin/.)
  SKELETON_SBIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/sbin/.)
  SKELETON_USR_LIB_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/usr/lib/.)
  SKELETON_USR_BIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/usr/bin/.)
  SKELETON_USR_SBIN_INODE = $(shell stat -c '%i' $(SKELETON_PATH)/usr/sbin/.)
  
  ifneq ($(SKELETON_LIB_INODE),$(SKELETON_USR_LIB_INODE))
  SKELETON_CUSTOM_NOT_MERGED_USR += /lib
  endif
  ifneq ($(SKELETON_BIN_INODE),$(SKELETON_USR_BIN_INODE))
  SKELETON_CUSTOM_NOT_MERGED_USR += /bin
  endif
  ifneq ($(SKELETON_SBIN_INODE),$(SKELETON_USR_SBIN_INODE))
  SKELETON_CUSTOM_NOT_MERGED_USR += /sbin
  endif
  
  ifneq ($(SKELETON_CUSTOM_NOT_MERGED_USR),)
  $(error The custom skeleton in $(SKELETON_PATH) is not \
  	using a merged /usr for the following directories: \
  	$(SKELETON_CUSTOM_NOT_MERGED_USR))
  endif
  
  endif # merged /usr
  
  else # ! custom skeleton
  
  SKELETON_PATH = system/skeleton
  
  endif # ! custom skeleton
  
  # This function handles the merged or non-merged /usr cases
  ifeq ($(BR2_ROOTFS_MERGED_USR),y)
  define SKELETON_USR_SYMLINKS_OR_DIRS
  	ln -snf usr/bin $(1)/bin
  	ln -snf usr/sbin $(1)/sbin
  	ln -snf usr/lib $(1)/lib
  endef
  else
  define SKELETON_USR_SYMLINKS_OR_DIRS
  	$(INSTALL) -d -m 0755 $(1)/bin
  	$(INSTALL) -d -m 0755 $(1)/sbin
  	$(INSTALL) -d -m 0755 $(1)/lib
  endef
  endif
  
  # We make a symlink lib32->lib or lib64->lib as appropriate
  # MIPS64/n32 requires lib32 even though it's a 64-bit arch.
  ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
  SKELETON_LIB_SYMLINK = lib64
  else
  SKELETON_LIB_SYMLINK = lib32
  endif
  
  define SKELETON_INSTALL_TARGET_CMDS
  	rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
  		--chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
  		$(SKELETON_PATH)/ $(TARGET_DIR)/
  	$(call SKELETON_USR_SYMLINKS_OR_DIRS,$(TARGET_DIR))
  	ln -snf lib $(TARGET_DIR)/$(SKELETON_LIB_SYMLINK)
  	ln -snf lib $(TARGET_DIR)/usr/$(SKELETON_LIB_SYMLINK)
  	$(INSTALL) -m 0644 support/misc/target-dir-warning.txt \
  		$(TARGET_DIR_WARNING_FILE)
  endef
  
  # For the staging dir, we don't really care about /bin and /sbin.
  # But for consistency with the target dir, and to simplify the code,
  # we still handle them for the merged or non-merged /usr cases.
  # Since the toolchain is not yet available, the staging is not yet
  # populated, so we need to create the directories in /usr
  define SKELETON_INSTALL_STAGING_CMDS
  	$(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/lib
  	$(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/bin
  	$(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/sbin
  	$(INSTALL) -d -m 0755 $(STAGING_DIR)/usr/include
  	$(call SKELETON_USR_SYMLINKS_OR_DIRS,$(STAGING_DIR))
  	ln -snf lib $(STAGING_DIR)/$(SKELETON_LIB_SYMLINK)
  	ln -snf lib $(STAGING_DIR)/usr/$(SKELETON_LIB_SYMLINK)
  endef
  
  # The TARGET_FINALIZE_HOOKS must be sourced only if the users choose to use the
  # default skeleton.
  ifeq ($(BR2_ROOTFS_SKELETON_DEFAULT),y)
  
  SKELETON_TARGET_GENERIC_HOSTNAME = $(call qstrip,$(BR2_TARGET_GENERIC_HOSTNAME))
  SKELETON_TARGET_GENERIC_ISSUE = $(call qstrip,$(BR2_TARGET_GENERIC_ISSUE))
  SKELETON_TARGET_GENERIC_ROOT_PASSWD = $(call qstrip,$(BR2_TARGET_GENERIC_ROOT_PASSWD))
  SKELETON_TARGET_GENERIC_PASSWD_METHOD = $(call qstrip,$(BR2_TARGET_GENERIC_PASSWD_METHOD))
  SKELETON_TARGET_GENERIC_BIN_SH = $(call qstrip,$(BR2_SYSTEM_BIN_SH))
  SKELETON_TARGET_GENERIC_GETTY_PORT = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_PORT))
  SKELETON_TARGET_GENERIC_GETTY_BAUDRATE = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_BAUDRATE))
  SKELETON_TARGET_GENERIC_GETTY_TERM = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_TERM))
  SKELETON_TARGET_GENERIC_GETTY_OPTIONS = $(call qstrip,$(BR2_TARGET_GENERIC_GETTY_OPTIONS))
  
  ifneq ($(SKELETON_TARGET_GENERIC_HOSTNAME),)
  define SKELETON_SET_HOSTNAME
  	mkdir -p $(TARGET_DIR)/etc
  	echo "$(SKELETON_TARGET_GENERIC_HOSTNAME)" > $(TARGET_DIR)/etc/hostname
  	$(SED) '$$a \127.0.1.1\t$(SKELETON_TARGET_GENERIC_HOSTNAME)' \
  		-e '/^127.0.1.1/d' $(TARGET_DIR)/etc/hosts
  endef
  TARGET_FINALIZE_HOOKS += SKELETON_SET_HOSTNAME
  endif
  
  ifneq ($(SKELETON_TARGET_GENERIC_ISSUE),)
  define SKELETON_SET_ISSUE
  	mkdir -p $(TARGET_DIR)/etc
  	echo "$(SKELETON_TARGET_GENERIC_ISSUE)" > $(TARGET_DIR)/etc/issue
  endef
  TARGET_FINALIZE_HOOKS += SKELETON_SET_ISSUE
  endif
  
  define SKELETON_SET_NETWORK_LOCALHOST
  	( \
  		echo "# interface file auto-generated by buildroot"; \
  		echo ;                                               \
  		echo "auto lo";                                      \
  		echo "iface lo inet loopback";                       \
  	) > $(TARGET_DIR)/etc/network/interfaces
  endef
  
  SKELETON_NETWORK_DHCP_IFACE = $(call qstrip,$(BR2_SYSTEM_DHCP))
  
  ifneq ($(SKELETON_NETWORK_DHCP_IFACE),)
  define SKELETON_SET_NETWORK_DHCP
  	( \
  		echo ;                                               \
  		echo "auto $(SKELETON_NETWORK_DHCP_IFACE)";                   \
  		echo "iface $(SKELETON_NETWORK_DHCP_IFACE) inet dhcp";        \
  		echo "	pre-up /etc/network/nfs_check";              \
  		echo "	wait-delay 15";                              \
  	) >> $(TARGET_DIR)/etc/network/interfaces
  	$(INSTALL) -m 0755 -D $(SKELETON_PKGDIR)/nfs_check \
  		$(TARGET_DIR)/etc/network/nfs_check
  endef
  endif
  
  define SKELETON_SET_NETWORK
  	mkdir -p $(TARGET_DIR)/etc/network/
  	$(SKELETON_SET_NETWORK_LOCALHOST)
  	$(SKELETON_SET_NETWORK_DHCP)
  endef
  
  TARGET_FINALIZE_HOOKS += SKELETON_SET_NETWORK
  
  ifeq ($(BR2_TARGET_ENABLE_ROOT_LOGIN),y)
  ifeq ($(SKELETON_TARGET_GENERIC_ROOT_PASSWD),)
  SKELETON_ROOT_PASSWORD =
  else ifneq ($(filter $$1$$% $$5$$% $$6$$%,$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)),)
  SKELETON_ROOT_PASSWORD = '$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)'
  else
  SKELETON_DEPENDENCIES += host-mkpasswd
  # This variable will only be evaluated in the finalize stage, so we can
  # be sure that host-mkpasswd will have already been built by that time.
  SKELETON_ROOT_PASSWORD = "`$(MKPASSWD) -m "$(SKELETON_TARGET_GENERIC_PASSWD_METHOD)" "$(SKELETON_TARGET_GENERIC_ROOT_PASSWD)"`"
  endif
  else # !BR2_TARGET_ENABLE_ROOT_LOGIN
  SKELETON_ROOT_PASSWORD = "*"
  endif
  
  define SKELETON_SET_ROOT_PASSWD
  	$(SED) s,^root:[^:]*:,root:$(SKELETON_ROOT_PASSWORD):, $(TARGET_DIR)/etc/shadow
  endef
  TARGET_FINALIZE_HOOKS += SKELETON_SET_ROOT_PASSWD
  
  ifeq ($(BR2_SYSTEM_BIN_SH_NONE),y)
  define SKELETON_BIN_SH
  	rm -f $(TARGET_DIR)/bin/sh
  endef
  else
  define SKELETON_BIN_SH
  	ln -sf $(SKELETON_TARGET_GENERIC_BIN_SH) $(TARGET_DIR)/bin/sh
  endef
  endif
  TARGET_FINALIZE_HOOKS += SKELETON_BIN_SH
  
  ifeq ($(BR2_TARGET_GENERIC_GETTY),y)
  ifeq ($(BR2_INIT_SYSV),y)
  # In sysvinit inittab, the "id" must not be longer than 4 bytes, so we
  # skip the "tty" part and keep only the remaining.
  define SKELETON_SET_GETTY
  	$(SED) '/# GENERIC_SERIAL$$/s~^.*#~$(shell echo $(SKELETON_TARGET_GENERIC_GETTY_PORT) | tail -c+4)::respawn:/sbin/getty -L $(SKELETON_TARGET_GENERIC_GETTY_OPTIONS) $(SKELETON_TARGET_GENERIC_GETTY_PORT) $(SKELETON_TARGET_GENERIC_GETTY_BAUDRATE) $(SKELETON_TARGET_GENERIC_GETTY_TERM) #~' \
  		$(TARGET_DIR)/etc/inittab
  endef
  else ifeq ($(BR2_INIT_BUSYBOX),y)
  # Add getty to busybox inittab
  define SKELETON_SET_GETTY
  	$(SED) '/# GENERIC_SERIAL$$/s~^.*#~$(SKELETON_TARGET_GENERIC_GETTY_PORT)::respawn:/sbin/getty -L $(SKELETON_TARGET_GENERIC_GETTY_OPTIONS) $(SKELETON_TARGET_GENERIC_GETTY_PORT) $(SKELETON_TARGET_GENERIC_GETTY_BAUDRATE) $(SKELETON_TARGET_GENERIC_GETTY_TERM) #~' \
  		$(TARGET_DIR)/etc/inittab
  endef
  endif
  TARGET_FINALIZE_HOOKS += SKELETON_SET_GETTY
  endif
  
  ifeq ($(BR2_INIT_BUSYBOX)$(BR2_INIT_SYSV),y)
  ifeq ($(BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW),y)
  # Find commented line, if any, and remove leading '#'s
  define SKELETON_REMOUNT_RW
  	$(SED) '/^#.*-o remount,rw \/$$/s~^#\+~~' $(TARGET_DIR)/etc/inittab
  endef
  else
  # Find uncommented line, if any, and add a leading '#'
  define SKELETON_REMOUNT_RW
  	$(SED) '/^[^#].*-o remount,rw \/$$/s~^~#~' $(TARGET_DIR)/etc/inittab
  endef
  endif
  TARGET_FINALIZE_HOOKS += SKELETON_REMOUNT_RW
  endif # BR2_INIT_BUSYBOX || BR2_INIT_SYSV
  
  endif # BR2_ROOTFS_SKELETON_DEFAULT
  
  $(eval $(generic-package))