################################################################################
  #
  # nodejs
  #
  ################################################################################
  
  NODEJS_VERSION = $(call qstrip,$(BR2_PACKAGE_NODEJS_VERSION_STRING))
  NODEJS_SOURCE = node-v$(NODEJS_VERSION).tar.xz
  NODEJS_SITE = http://nodejs.org/dist/v$(NODEJS_VERSION)
  NODEJS_DEPENDENCIES = host-python host-nodejs zlib \
  	$(call qstrip,$(BR2_PACKAGE_NODEJS_MODULES_ADDITIONAL_DEPS))
  HOST_NODEJS_DEPENDENCIES = host-python host-zlib
  NODEJS_LICENSE = MIT (core code); MIT, Apache and BSD family licenses (Bundled components)
  NODEJS_LICENSE_FILES = LICENSE
  
  NODEJS_CONF_OPTS = \
  	--without-snapshot \
  	--shared-zlib \
  	--without-dtrace \
  	--without-etw \
  	--dest-os=linux
  
  ifeq ($(BR2_PACKAGE_OPENSSL),y)
  NODEJS_DEPENDENCIES += openssl
  NODEJS_CONF_OPTS += --shared-openssl
  else
  NODEJS_CONF_OPTS += --without-ssl
  endif
  
  # 0.10.x does not have icu support
  ifeq ($(findstring 0.10.,$(NODEJS_VERSION)),)
  ifeq ($(BR2_PACKAGE_ICU),y)
  NODEJS_DEPENDENCIES += icu
  NODEJS_CONF_OPTS += --with-intl=system-icu
  else
  NODEJS_CONF_OPTS += --with-intl=none
  endif
  endif
  
  ifneq ($(BR2_PACKAGE_NODEJS_NPM),y)
  NODEJS_CONF_OPTS += --without-npm
  endif
  
  # nodejs build system is based on python, but only support python-2.6 or
  # python-2.7. So, we have to enforce PYTHON interpreter to be python2.
  define HOST_NODEJS_CONFIGURE_CMDS
  	# The build system directly calls python. Work around this by forcing python2
  	# into PATH. See https://github.com/nodejs/node/issues/2735
  	mkdir -p $(@D)/bin
  	ln -sf $(HOST_DIR)/usr/bin/python2 $(@D)/bin/python
  
  	# Build with the static, built-in OpenSSL which is supplied as part of
  	# the nodejs source distribution.  This is needed on the host because
  	# NPM is non-functional without it, and host-openssl isn't part of
  	# buildroot.
  	(cd $(@D); \
  		$(HOST_CONFIGURE_OPTS) \
  		PATH=$(@D)/bin:$(BR_PATH) \
  		PYTHON=$(HOST_DIR)/usr/bin/python2 \
  		$(HOST_DIR)/usr/bin/python2 ./configure \
  		--prefix=$(HOST_DIR)/usr \
  		--without-snapshot \
  		--without-dtrace \
  		--without-etw \
  		--shared-zlib \
  	)
  endef
  
  define HOST_NODEJS_BUILD_CMDS
  	$(HOST_MAKE_ENV) PYTHON=$(HOST_DIR)/usr/bin/python2 \
  		$(MAKE) -C $(@D) \
  		$(HOST_CONFIGURE_OPTS) \
  		PATH=$(@D)/bin:$(BR_PATH)
  endef
  
  define HOST_NODEJS_INSTALL_CMDS
  	$(HOST_MAKE_ENV) PYTHON=$(HOST_DIR)/usr/bin/python2 \
  		$(MAKE) -C $(@D) install \
  		$(HOST_CONFIGURE_OPTS) \
  		PATH=$(@D)/bin:$(BR_PATH)
  endef
  
  ifeq ($(BR2_i386),y)
  NODEJS_CPU = ia32
  else ifeq ($(BR2_x86_64),y)
  NODEJS_CPU = x64
  else ifeq ($(BR2_mips),y)
  NODEJS_CPU = mips
  else ifeq ($(BR2_mipsel),y)
  NODEJS_CPU = mipsel
  else ifeq ($(BR2_arm),y)
  NODEJS_CPU = arm
  # V8 needs to know what floating point ABI the target is using.
  NODEJS_ARM_FP = $(call qstrip,$(BR2_GCC_TARGET_FLOAT_ABI))
  endif
  
  # MIPS architecture specific options
  ifeq ($(BR2_mips)$(BR2_mipsel),y)
  ifeq ($(BR2_mips_32r6),y)
  NODEJS_MIPS_ARCH_VARIANT = r6
  NODEJS_MIPS_FPU_MODE = fp64
  else ifeq ($(BR2_mips_32r2),y)
  NODEJS_MIPS_ARCH_VARIANT = r2
  else ifeq ($(BR2_mips_32),y)
  NODEJS_MIPS_ARCH_VARIANT = r1
  endif
  endif
  
  define NODEJS_CONFIGURE_CMDS
  	mkdir -p $(@D)/bin
  	ln -sf $(HOST_DIR)/usr/bin/python2 $(@D)/bin/python
  
  	(cd $(@D); \
  		$(TARGET_CONFIGURE_OPTS) \
  		PATH=$(@D)/bin:$(BR_PATH) \
  		LD="$(TARGET_CXX)" \
  		PYTHON=$(HOST_DIR)/usr/bin/python2 \
  		$(HOST_DIR)/usr/bin/python2 ./configure \
  		--prefix=/usr \
  		--dest-cpu=$(NODEJS_CPU) \
  		$(if $(NODEJS_ARM_FP),--with-arm-float-abi=$(NODEJS_ARM_FP)) \
  		$(if $(NODEJS_MIPS_ARCH_VARIANT),--with-mips-arch-variant=$(NODEJS_MIPS_ARCH_VARIANT)) \
  		$(if $(NODEJS_MIPS_FPU_MODE),--with-mips-fpu-mode=$(NODEJS_MIPS_FPU_MODE)) \
  		$(NODEJS_CONF_OPTS) \
  	)
  endef
  
  define NODEJS_BUILD_CMDS
  	$(TARGET_MAKE_ENV) PYTHON=$(HOST_DIR)/usr/bin/python2 \
  		$(MAKE) -C $(@D) \
  		$(TARGET_CONFIGURE_OPTS) \
  		PATH=$(@D)/bin:$(BR_PATH) \
  		LD="$(TARGET_CXX)"
  endef
  
  #
  # Build the list of modules to install based on the booleans for
  # popular modules, as well as the "additional modules" list.
  #
  NODEJS_MODULES_LIST= $(call qstrip,\
  	$(if $(BR2_PACKAGE_NODEJS_MODULES_EXPRESS),express) \
  	$(if $(BR2_PACKAGE_NODEJS_MODULES_COFFEESCRIPT),coffee-script) \
  	$(BR2_PACKAGE_NODEJS_MODULES_ADDITIONAL))
  
  # Define NPM for other packages to use
  NPM = $(TARGET_CONFIGURE_OPTS) \
  	LD="$(TARGET_CXX)" \
  	npm_config_arch=$(NODEJS_CPU) \
  	npm_config_target_arch=$(NODEJS_CPU) \
  	npm_config_build_from_source=true \
  	npm_config_nodedir=$(BUILD_DIR)/nodejs-$(NODEJS_VERSION) \
  	npm_config_prefix=$(TARGET_DIR)/usr \
  	$(HOST_DIR)/usr/bin/npm
  
  #
  # We can only call NPM if there's something to install.
  #
  ifneq ($(NODEJS_MODULES_LIST),)
  define NODEJS_INSTALL_MODULES
  	# If you're having trouble with module installation, adding -d to the
  	# npm install call below and setting npm_config_rollback=false can both
  	# help in diagnosing the problem.
  	$(NPM) install -g $(NODEJS_MODULES_LIST)
  endef
  endif
  
  define NODEJS_INSTALL_TARGET_CMDS
  	$(TARGET_MAKE_ENV) PYTHON=$(HOST_DIR)/usr/bin/python2 \
  		$(MAKE) -C $(@D) install \
  		DESTDIR=$(TARGET_DIR) \
  		$(TARGET_CONFIGURE_OPTS) \
  		PATH=$(@D)/bin:$(BR_PATH) \
  		LD="$(TARGET_CXX)"
  	$(NODEJS_INSTALL_MODULES)
  endef
  
  # node.js configure is a Python script and does not use autotools
  $(eval $(generic-package))
  $(eval $(host-generic-package))