+STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
+TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
+TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
+STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
+BUILD_LOG_DIR:=$(TOPDIR)/logs
+PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
+
+BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR)/host,$(BUILD_DIR_BASE)/host)
+STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
+
+TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
+TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
+TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
+TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
+TARGET_CXXFLAGS = $(TARGET_CFLAGS)
+TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
+TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
+TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
+TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
+ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
+LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
+LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
+LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
+else
+LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
+LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
+endif
+LIBRPC=-lrpc
+LIBRPC_DEPENDS=+librpc
+
+ifeq ($(CONFIG_ARCH_64BIT),y)
+ LIB_SUFFIX:=64
+endif
+
+ifndef DUMP
+ ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
+ -include $(TOOLCHAIN_DIR)/info.mk
+ export GCC_HONOUR_COPTS:=0
+ TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
+ TARGET_CFLAGS+= -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
+ TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include
+ ifeq ($(CONFIG_USE_MUSL),y)
+ TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include/fortify
+ endif
+ TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include
+ TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
+ TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
+ else
+ ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
+ TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
+ TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
+ TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
+ TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
+ TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
+ ifneq ($(TOOLCHAIN_BIN_DIRS),)
+ TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
+ endif
+ ifneq ($(TOOLCHAIN_INC_DIRS),)
+ TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
+ endif
+ ifneq ($(TOOLCHAIN_LIB_DIRS),)
+ TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
+ endif
+ TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
+ endif
+ endif
+endif
+TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
+
+ifeq ($(CONFIG_SOFT_FLOAT),y)
+ SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
+ ifeq ($(CONFIG_arm),y)
+ TARGET_CFLAGS+= -mfloat-abi=soft
+ else
+ TARGET_CFLAGS+= -msoft-float
+ endif
+else
+ SOFT_FLOAT_CONFIG_OPTION:=
+ ifeq ($(CONFIG_arm),y)
+ TARGET_CFLAGS+= -mfloat-abi=hard
+ endif
+endif
+
+export PATH:=$(TARGET_PATH)
+export STAGING_DIR STAGING_DIR_HOST
+export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
+
+PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
+
+export PKG_CONFIG
+
+HOSTCC:=gcc
+HOSTCXX:=g++
+HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include -I$(STAGING_DIR_HOST)/usr/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR)/host/include)
+HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
+HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib -L$(STAGING_DIR_HOST)/usr/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR)/host/lib)
+
+ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
+ TARGET_AR:=$(TARGET_CROSS)gcc-ar
+ TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
+ TARGET_NM:=$(TARGET_CROSS)gcc-nm
+else
+ TARGET_AR:=$(TARGET_CROSS)ar
+ TARGET_RANLIB:=$(TARGET_CROSS)ranlib
+ TARGET_NM:=$(TARGET_CROSS)nm
+endif
+
+BUILD_KEY=$(TOPDIR)/key-build
+