Makefile - buildroot - Git at Google

 # Makefile for buildroot2
 #
 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 #

 #--------------------------------------------------------------
 # Just run 'make menuconfig', configure stuff, then run 'make'.
 # You shouldn't need to mess with anything beyond this point...
 #--------------------------------------------------------------
 TOPDIR=./
 CONFIG_CONFIG_IN = Config.in
 CONFIG_DEFCONFIG = .defconfig
 CONFIG = package/config

 noconfig_targets := menuconfig config oldconfig randconfig \
 	defconfig allyesconfig allnoconfig release tags    \
 	source-check help

 #	$(shell find . -name *_defconfig |sed 's/.*\///')

 # Pull in the user's configuration file
 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 -include $(TOPDIR).config
 endif

 # To put more focus on warnings, be less verbose as default
 # Use 'make V=1' to see the full commands
 ifdef V
   ifeq ("$(origin V)", "command line")
     KBUILD_VERBOSE = $(V)
   endif
 endif
 ifndef KBUILD_VERBOSE
   KBUILD_VERBOSE = 0
 endif

 ifeq ($(KBUILD_VERBOSE),1)
   quiet=
   Q =
 else
   quiet=quiet_
   Q = @
 endif

 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 	else if [ -x /bin/bash ]; then echo /bin/bash; \
 	else echo sh; fi ; fi)

 export CONFIG_SHELL quiet Q KBUILD_VERBOSE

 ifndef HOSTAR
 HOSTAR:=ar
 endif
 ifndef HOSTAS
 HOSTAS:=as
 endif
 ifndef HOSTCC
 HOSTCC:=gcc
 else
 endif
 ifndef HOSTCXX
 HOSTCXX:=g++
 endif
 ifndef HOSTLD
 HOSTLD:=ld
 endif
 HOSTAR :=$(shell $(CONFIG_SHELL) -c "which $(HOSTAR)"  || type -p $(HOSTAR)  || echo ar)
 HOSTAS :=$(shell $(CONFIG_SHELL) -c "which $(HOSTAS)"  || type -p $(HOSTAS)  || echo as)
 HOSTCC :=$(shell $(CONFIG_SHELL) -c "which $(HOSTCC)"  || type -p $(HOSTCC)  || echo gcc)
 HOSTCXX:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCXX)" || type -p $(HOSTCXX) || echo g++)
 HOSTLD :=$(shell $(CONFIG_SHELL) -c "which $(HOSTLD)"  || type -p $(HOSTLD)  || echo ld)
 ifndef CFLAGS_FOR_BUILD
 CFLAGS_FOR_BUILD:=-g -O2
 endif
 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD


 ifeq ($(strip $(BR2_HAVE_DOT_CONFIG)),y)

 # cc-option
 # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
 # sets -march=winchip-c6 if supported else falls back to -march=i586
 # without checking the latter.
 cc-option = $(shell if $(TARGET_CC) $(TARGET_CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
 	> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)

 #############################################################
 #
 # Hide troublesome environment variables from sub processes
 #
 #############################################################
 unexport CROSS_COMPILE
 unexport ARCH

 #############################################################
 #
 # Setup the proper filename extensions for the host
 #
 ##############################################################
 ifneq ($(findstring linux,$(BR2_GNU_BUILD_SUFFIX)),)
 HOST_EXEEXT:=
 HOST_LIBEXT:=.a
 HOST_SHREXT:=.so
 endif
 ifneq ($(findstring apple,$(BR2_GNU_BUILD_SUFFIX)),)
 HOST_EXEEXT:=
 HOST_LIBEXT:=.a
 HOST_SHREXT:=.dylib
 endif
 ifneq ($(findstring cygwin,$(BR2_GNU_BUILD_SUFFIX)),)
 HOST_EXEEXT:=.exe
 HOST_LIBEXT:=.lib
 HOST_SHREXT:=.dll
 endif
 ifneq ($(findstring mingw,$(BR2_GNU_BUILD_SUFFIX)),)
 HOST_EXEEXT:=.exe
 HOST_LIBEXT:=.lib
 HOST_SHREXT:=.dll
 endif

 # The preferred type of libs we build for the target
 ifeq ($(BR2_PREFER_STATIC_LIB),y)
 LIBTGTEXT=.a
 #PREFERRED_LIB_FLAGS:=--disable-shared --enable-static
 else
 LIBTGTEXT=.so
 #PREFERRED_LIB_FLAGS:=--disable-static --enable-shared
 endif
 PREFERRED_LIB_FLAGS:=--enable-static --enable-shared


 #############################################################
 #
 # The list of stuff to build for the target toolchain
 # along with the packages to build for the target.
 #
 ##############################################################
 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 TARGETS:=uclibc-configured binutils gcc uclibc-target-utils
 else
 TARGETS:=uclibc
 endif
 include toolchain/Makefile.in
 include package/Makefile.in

 #############################################################
 #
 # You should probably leave this stuff alone unless you know
 # what you are doing.
 #
 #############################################################

 all:   world

 # In this section, we need .config
 include .config.cmd

 # We also need the various per-package makefiles, which also add
 # each selected package to TARGETS if that package was selected
 # in the .config file.
 include toolchain/*/*.mk
 include package/*/*.mk

 # target stuff is last so it can override anything else
 include target/Makefile.in

 TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
 TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS))
 TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))

 world: $(DL_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) $(TARGETS)
 dirs: $(DL_DIR) $(BUILD_DIR) $(STAGING_DIR)

 .PHONY: all world dirs clean dirclean distclean source $(TARGETS) \
 	$(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) \
 	$(DL_DIR) $(BUILD_DIR) $(TOOL_BUILD_DIR) $(STAGING_DIR)

 #############################################################
 #
 # staging and target directories do NOT list these as
 # dependencies anywhere else
 #
 #############################################################
 $(DL_DIR) $(BUILD_DIR) $(TOOL_BUILD_DIR):
 	@mkdir -p $@

 $(STAGING_DIR):
 	@mkdir -p $(STAGING_DIR)/bin
 	@mkdir -p $(STAGING_DIR)/lib
 ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
 	@mkdir -p $(STAGING_DIR)/usr/lib
 else
 	@ln -snf . $(STAGING_DIR)/usr
 	@mkdir -p $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)
 	@ln -snf ../lib $(STAGING_DIR)/usr/lib
 	@ln -snf ../lib $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
 endif
 	@mkdir -p $(STAGING_DIR)/usr/include

 $(TARGET_DIR):
 	mkdir -p $(TARGET_DIR)
 	if [ -d "$(TARGET_SKELETON)" ] ; then \
 		cp -fa $(TARGET_SKELETON)/* $(TARGET_DIR)/; \
 	fi;
 	touch $(STAGING_DIR)/.fakeroot.00000
 	-find $(TARGET_DIR) -type d -name CVS | xargs rm -rf
 	-find $(TARGET_DIR) -type d -name .svn | xargs rm -rf

 source: $(TARGETS_SOURCE) $(HOST_SOURCE)

 .config.check: dependencies
 	$(SED) '/BR2_WGET/s/\"$$/ --spider\"/g' .config
 	touch $@

 _source-check: .config.check
 	$(MAKE) source

 #############################################################
 #
 # Cleanup and misc junk
 #
 #############################################################
 clean: $(TARGETS_CLEAN)
 	rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)

 dirclean: $(TARGETS_DIRCLEAN)
 	rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)

 distclean:
 ifeq ($(DL_DIR),$(BASE_DIR)/dl)
 	rm -rf $(DL_DIR)
 endif
 	rm -rf $(BUILD_DIR) $(LINUX_KERNEL) $(IMAGE) $(BASE_DIR)/include \
 		.config.cmd
 	$(MAKE) -C $(CONFIG) clean

 sourceball:
 	rm -rf $(BUILD_DIR)
 	set -e; \
 	cd ..; \
 	rm -f buildroot.tar.bz2; \
 	tar -cvf buildroot.tar buildroot; \
 	bzip2 -9 buildroot.tar; \


 else # ifeq ($(strip $(BR2_HAVE_DOT_CONFIG)),y)

 all: menuconfig

 # configuration
 # ---------------------------------------------------------------------------

 $(CONFIG)/conf:
 	$(MAKE) CC="$(HOSTCC)" HOSTCFLAGS="$(CFLAGS_FOR_BUILD)" MAKECMDGOALS="$(MAKECMDGOALS)" \
 		-C $(CONFIG) conf
 	-@if [ ! -f .config ] ; then \
 		cp $(CONFIG_DEFCONFIG) .config; \
 	fi
 $(CONFIG)/mconf:
 	$(MAKE) CC="$(HOSTCC)" HOSTCFLAGS="$(CFLAGS_FOR_BUILD)" MAKECMDGOALS="$(MAKECMDGOALS)" \
 		-C $(CONFIG) conf mconf
 	-@if [ ! -f .config ] ; then \
 		cp $(CONFIG_DEFCONFIG) .config; \
 	fi

 menuconfig: $(CONFIG)/mconf
 	@-mkdir -p include/config
 	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
 		KCONFIG_AUTOHEADER=include/autoconf.h \
 		$(CONFIG)/mconf $(CONFIG_CONFIG_IN)

 config: $(CONFIG)/conf
 	@-mkdir -p include/config
 	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
 		KCONFIG_AUTOHEADER=include/autoconf.h \
 		$(CONFIG)/conf $(CONFIG_CONFIG_IN)

 oldconfig: $(CONFIG)/conf
 	@-mkdir -p include/config
 	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
 		KCONFIG_AUTOHEADER=include/autoconf.h \
 		$(CONFIG)/conf -o $(CONFIG_CONFIG_IN)

 randconfig: $(CONFIG)/conf
 	@-mkdir -p include/config
 	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
 		KCONFIG_AUTOHEADER=include/autoconf.h \
 		$(CONFIG)/conf -r $(CONFIG_CONFIG_IN)

 allyesconfig: $(CONFIG)/conf
 	cat $(CONFIG_DEFCONFIG) > .config
 	@-mkdir -p include/config
 	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
 		KCONFIG_AUTOHEADER=include/autoconf.h \
 		$(CONFIG)/conf -y $(CONFIG_CONFIG_IN)
 	#sed -i -e "s/^CONFIG_DEBUG.*/# CONFIG_DEBUG is not set/" .config

 allnoconfig: $(CONFIG)/conf
 	@-mkdir -p include/config
 	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
 		KCONFIG_AUTOHEADER=include/autoconf.h \
 		$(CONFIG)/conf -n $(CONFIG_CONFIG_IN)

 defconfig: $(CONFIG)/conf
 	@-mkdir -p include/config
 	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
 		KCONFIG_AUTOHEADER=include/autoconf.h \
 		$(CONFIG)/conf -d $(CONFIG_CONFIG_IN)

 # check if download URLs are outdated
 source-check: allyesconfig
 	$(MAKE) _source-check

 #############################################################
 #
 # Cleanup and misc junk
 #
 #############################################################
 clean:
 	rm -f .config .config.old .config.cmd .tmpconfig.h
 	- $(MAKE) -C $(CONFIG) clean

 distclean: clean
 	rm -rf sources/*

 endif # ifeq ($(strip $(BR2_HAVE_DOT_CONFIG)),y)

 %_defconfig: $(CONFIG)/conf
 	cp $(shell find ./target/ -name $@) .config
 	@$(CONFIG)/conf -o $(CONFIG_CONFIG_IN)

 help:
 	@echo 'Cleaning:'
 	@echo '  clean                  - delete temporary files created by build'
 	@echo '  distclean              - delete all non-source files (including .config)'
 	@echo
 	@echo 'Build:'
 	@echo '  all                    - make world'
 	@echo
 	@echo 'Configuration:'
 	@echo '  menuconfig             - interactive curses-based configurator'
 	@echo '  oldconfig              - resolve any unresolved symbols in .config'
 	@echo
 	@echo 'Miscellaneous:'
 	@echo '  source                 - download all sources needed for offline-build'
 	@echo '  source-check           - check all packages for valid download URLS'
 	@echo

 .PHONY: dummy subdirs release distclean clean config oldconfig \
 	menuconfig tags check test depend defconfig help
	# Makefile for buildroot2
	#
	# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
	#
	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation; either version 2 of the License, or
	# (at your option) any later version.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	# General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program; if not, write to the Free Software
	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	#

	#--------------------------------------------------------------
	# Just run 'make menuconfig', configure stuff, then run 'make'.
	# You shouldn't need to mess with anything beyond this point...
	#--------------------------------------------------------------
	TOPDIR=./
	CONFIG_CONFIG_IN = Config.in
	CONFIG_DEFCONFIG = .defconfig
	CONFIG = package/config

	noconfig_targets := menuconfig config oldconfig randconfig \
	defconfig allyesconfig allnoconfig release tags \
	source-check help

	# $(shell find . -name _defconfig \|sed 's/.\///')

	# Pull in the user's configuration file
	ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
	-include $(TOPDIR).config
	endif

	# To put more focus on warnings, be less verbose as default
	# Use 'make V=1' to see the full commands
	ifdef V
	ifeq ("$(origin V)", "command line")
	KBUILD_VERBOSE = $(V)
	endif
	endif
	ifndef KBUILD_VERBOSE
	KBUILD_VERBOSE = 0
	endif

	ifeq ($(KBUILD_VERBOSE),1)
	quiet=
	Q =
	else
	quiet=quiet_
	Q = @
	endif

	CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
	else if [ -x /bin/bash ]; then echo /bin/bash; \
	else echo sh; fi ; fi)

	export CONFIG_SHELL quiet Q KBUILD_VERBOSE

	ifndef HOSTAR
	HOSTAR:=ar
	endif
	ifndef HOSTAS
	HOSTAS:=as
	endif
	ifndef HOSTCC
	HOSTCC:=gcc
	else
	endif
	ifndef HOSTCXX
	HOSTCXX:=g++
	endif
	ifndef HOSTLD
	HOSTLD:=ld
	endif
	HOSTAR :=$(shell $(CONFIG_SHELL) -c "which $(HOSTAR)" \|\| type -p $(HOSTAR) \|\| echo ar)
	HOSTAS :=$(shell $(CONFIG_SHELL) -c "which $(HOSTAS)" \|\| type -p $(HOSTAS) \|\| echo as)
	HOSTCC :=$(shell $(CONFIG_SHELL) -c "which $(HOSTCC)" \|\| type -p $(HOSTCC) \|\| echo gcc)
	HOSTCXX:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCXX)" \|\| type -p $(HOSTCXX) \|\| echo g++)
	HOSTLD :=$(shell $(CONFIG_SHELL) -c "which $(HOSTLD)" \|\| type -p $(HOSTLD) \|\| echo ld)
	ifndef CFLAGS_FOR_BUILD
	CFLAGS_FOR_BUILD:=-g -O2
	endif
	export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD


	ifeq ($(strip $(BR2_HAVE_DOT_CONFIG)),y)

	# cc-option
	# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
	# sets -march=winchip-c6 if supported else falls back to -march=i586
	# without checking the latter.
	cc-option = $(shell if $(TARGET_CC) $(TARGET_CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
	> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)

	#############################################################
	#
	# Hide troublesome environment variables from sub processes
	#
	#############################################################
	unexport CROSS_COMPILE
	unexport ARCH

	#############################################################
	#
	# Setup the proper filename extensions for the host
	#
	##############################################################
	ifneq ($(findstring linux,$(BR2_GNU_BUILD_SUFFIX)),)
	HOST_EXEEXT:=
	HOST_LIBEXT:=.a
	HOST_SHREXT:=.so
	endif
	ifneq ($(findstring apple,$(BR2_GNU_BUILD_SUFFIX)),)
	HOST_EXEEXT:=
	HOST_LIBEXT:=.a
	HOST_SHREXT:=.dylib
	endif
	ifneq ($(findstring cygwin,$(BR2_GNU_BUILD_SUFFIX)),)
	HOST_EXEEXT:=.exe
	HOST_LIBEXT:=.lib
	HOST_SHREXT:=.dll
	endif
	ifneq ($(findstring mingw,$(BR2_GNU_BUILD_SUFFIX)),)
	HOST_EXEEXT:=.exe
	HOST_LIBEXT:=.lib
	HOST_SHREXT:=.dll
	endif

	# The preferred type of libs we build for the target
	ifeq ($(BR2_PREFER_STATIC_LIB),y)
	LIBTGTEXT=.a
	#PREFERRED_LIB_FLAGS:=--disable-shared --enable-static
	else
	LIBTGTEXT=.so
	#PREFERRED_LIB_FLAGS:=--disable-static --enable-shared
	endif
	PREFERRED_LIB_FLAGS:=--enable-static --enable-shared


	#############################################################
	#
	# The list of stuff to build for the target toolchain
	# along with the packages to build for the target.
	#
	##############################################################
	ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
	TARGETS:=uclibc-configured binutils gcc uclibc-target-utils
	else
	TARGETS:=uclibc
	endif
	include toolchain/Makefile.in
	include package/Makefile.in

	#############################################################
	#
	# You should probably leave this stuff alone unless you know
	# what you are doing.
	#
	#############################################################

	all: world

	# In this section, we need .config
	include .config.cmd

	# We also need the various per-package makefiles, which also add
	# each selected package to TARGETS if that package was selected
	# in the .config file.
	include toolchain//.mk
	include package//.mk

	# target stuff is last so it can override anything else
	include target/Makefile.in

	TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
	TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS))
	TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))

	world: $(DL_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) $(TARGETS)
	dirs: $(DL_DIR) $(BUILD_DIR) $(STAGING_DIR)

	.PHONY: all world dirs clean dirclean distclean source $(TARGETS) \
	$(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) \
	$(DL_DIR) $(BUILD_DIR) $(TOOL_BUILD_DIR) $(STAGING_DIR)

	#############################################################
	#
	# staging and target directories do NOT list these as
	# dependencies anywhere else
	#
	#############################################################
	$(DL_DIR) $(BUILD_DIR) $(TOOL_BUILD_DIR):
	@mkdir -p $@

	$(STAGING_DIR):
	@mkdir -p $(STAGING_DIR)/bin
	@mkdir -p $(STAGING_DIR)/lib
	ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
	@mkdir -p $(STAGING_DIR)/usr/lib
	else
	@ln -snf . $(STAGING_DIR)/usr
	@mkdir -p $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)
	@ln -snf ../lib $(STAGING_DIR)/usr/lib
	@ln -snf ../lib $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
	endif
	@mkdir -p $(STAGING_DIR)/usr/include

	$(TARGET_DIR):
	mkdir -p $(TARGET_DIR)
	if [ -d "$(TARGET_SKELETON)" ] ; then \
	cp -fa $(TARGET_SKELETON)/* $(TARGET_DIR)/; \
	fi;
	touch $(STAGING_DIR)/.fakeroot.00000
	-find $(TARGET_DIR) -type d -name CVS \| xargs rm -rf
	-find $(TARGET_DIR) -type d -name .svn \| xargs rm -rf

	source: $(TARGETS_SOURCE) $(HOST_SOURCE)

	.config.check: dependencies
	$(SED) '/BR2_WGET/s/\"$$/ --spider\"/g' .config
	touch $@

	_source-check: .config.check
	$(MAKE) source

	#############################################################
	#
	# Cleanup and misc junk
	#
	#############################################################
	clean: $(TARGETS_CLEAN)
	rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)

	dirclean: $(TARGETS_DIRCLEAN)
	rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)

	distclean:
	ifeq ($(DL_DIR),$(BASE_DIR)/dl)
	rm -rf $(DL_DIR)
	endif
	rm -rf $(BUILD_DIR) $(LINUX_KERNEL) $(IMAGE) $(BASE_DIR)/include \
	.config.cmd
	$(MAKE) -C $(CONFIG) clean

	sourceball:
	rm -rf $(BUILD_DIR)
	set -e; \
	cd ..; \
	rm -f buildroot.tar.bz2; \
	tar -cvf buildroot.tar buildroot; \
	bzip2 -9 buildroot.tar; \


	else # ifeq ($(strip $(BR2_HAVE_DOT_CONFIG)),y)

	all: menuconfig

	# configuration
	# ---------------------------------------------------------------------------

	$(CONFIG)/conf:
	$(MAKE) CC="$(HOSTCC)" HOSTCFLAGS="$(CFLAGS_FOR_BUILD)" MAKECMDGOALS="$(MAKECMDGOALS)" \
	-C $(CONFIG) conf
	-@if [ ! -f .config ] ; then \
	cp $(CONFIG_DEFCONFIG) .config; \
	fi
	$(CONFIG)/mconf:
	$(MAKE) CC="$(HOSTCC)" HOSTCFLAGS="$(CFLAGS_FOR_BUILD)" MAKECMDGOALS="$(MAKECMDGOALS)" \
	-C $(CONFIG) conf mconf
	-@if [ ! -f .config ] ; then \
	cp $(CONFIG_DEFCONFIG) .config; \
	fi

	menuconfig: $(CONFIG)/mconf
	@-mkdir -p include/config
	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
	KCONFIG_AUTOHEADER=include/autoconf.h \
	$(CONFIG)/mconf $(CONFIG_CONFIG_IN)

	config: $(CONFIG)/conf
	@-mkdir -p include/config
	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
	KCONFIG_AUTOHEADER=include/autoconf.h \
	$(CONFIG)/conf $(CONFIG_CONFIG_IN)

	oldconfig: $(CONFIG)/conf
	@-mkdir -p include/config
	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
	KCONFIG_AUTOHEADER=include/autoconf.h \
	$(CONFIG)/conf -o $(CONFIG_CONFIG_IN)

	randconfig: $(CONFIG)/conf
	@-mkdir -p include/config
	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
	KCONFIG_AUTOHEADER=include/autoconf.h \
	$(CONFIG)/conf -r $(CONFIG_CONFIG_IN)

	allyesconfig: $(CONFIG)/conf
	cat $(CONFIG_DEFCONFIG) > .config
	@-mkdir -p include/config
	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
	KCONFIG_AUTOHEADER=include/autoconf.h \
	$(CONFIG)/conf -y $(CONFIG_CONFIG_IN)
	#sed -i -e "s/^CONFIG_DEBUG.*/# CONFIG_DEBUG is not set/" .config

	allnoconfig: $(CONFIG)/conf
	@-mkdir -p include/config
	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
	KCONFIG_AUTOHEADER=include/autoconf.h \
	$(CONFIG)/conf -n $(CONFIG_CONFIG_IN)

	defconfig: $(CONFIG)/conf
	@-mkdir -p include/config
	@KCONFIG_AUTOCONFIG=include/config/auto.conf \
	KCONFIG_AUTOHEADER=include/autoconf.h \
	$(CONFIG)/conf -d $(CONFIG_CONFIG_IN)

	# check if download URLs are outdated
	source-check: allyesconfig
	$(MAKE) _source-check

	#############################################################
	#
	# Cleanup and misc junk
	#
	#############################################################
	clean:
	rm -f .config .config.old .config.cmd .tmpconfig.h
	- $(MAKE) -C $(CONFIG) clean

	distclean: clean
	rm -rf sources/*

	endif # ifeq ($(strip $(BR2_HAVE_DOT_CONFIG)),y)

	%_defconfig: $(CONFIG)/conf
	cp $(shell find ./target/ -name $@) .config
	@$(CONFIG)/conf -o $(CONFIG_CONFIG_IN)

	help:
	@echo 'Cleaning:'
	@echo ' clean - delete temporary files created by build'
	@echo ' distclean - delete all non-source files (including .config)'
	@echo
	@echo 'Build:'
	@echo ' all - make world'
	@echo
	@echo 'Configuration:'
	@echo ' menuconfig - interactive curses-based configurator'
	@echo ' oldconfig - resolve any unresolved symbols in .config'
	@echo
	@echo 'Miscellaneous:'
	@echo ' source - download all sources needed for offline-build'
	@echo ' source-check - check all packages for valid download URLS'
	@echo

	.PHONY: dummy subdirs release distclean clean config oldconfig \
	menuconfig tags check test depend defconfig help