Makefile - codeaurora/busybox - Gitiles

 # Makefile for busybox
 #
 # Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 #
 # Licensed under GPLv2, see the file LICENSE in this tarball for details.
 #

 #--------------------------------------------------------------
 # You shouldn't need to mess with anything beyond this point...
 #--------------------------------------------------------------
 noconfig_targets := menuconfig config oldconfig randconfig \
 	defconfig allyesconfig allnoconfig allbareconfig \
 	clean distclean \
 	release tags

 # the toplevel sourcedir
 ifndef top_srcdir
 top_srcdir=$(CURDIR)
 endif
 # toplevel directory of the object-tree
 ifndef top_builddir
 top_builddir=$(CURDIR)
 endif

 export srctree=$(top_srcdir)
 vpath %/Config.in $(srctree)

 DIRS:=applets archival archival/libunarchive coreutils console-tools \
 	debianutils editors findutils init miscutils modutils networking \
 	networking/libiproute networking/udhcp procps loginutils shell \
 	sysklogd util-linux e2fsprogs libpwdgrp coreutils/libcoreutils libbb

 SRC_DIRS:=$(patsubst %,$(top_srcdir)/%,$(DIRS))

 # That's our default target when none is given on the command line
 .PHONY: _all
 _all:

 CONFIG_CONFIG_IN = $(top_srcdir)/Config.in
 CONFIG_DEFCONFIG = $(top_srcdir)/defconfig

 ifeq ($(KBUILD_SRC),)

 ifdef O
   ifeq ("$(origin O)", "command line")
     KBUILD_OUTPUT := $(O)
     top_builddir := $(O)
   endif
 else
 # If no alternate output-dir was specified, we build in cwd
 # We are using KBUILD_OUTPUT nevertheless to make sure that we create
 # Rules.mak and the toplevel Makefile, in case they don't exist.
   KBUILD_OUTPUT := $(top_builddir)
 endif

 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 # pull in OS specific commands like cp, mkdir, etc. early
 -include $(top_srcdir)/Rules.mak
 endif

 # All object directories.
 OBJ_DIRS := $(DIRS)
 all_tree := $(patsubst %,$(top_builddir)/%,$(OBJ_DIRS) scripts scripts/config include)
 all_tree: $(all_tree)
 $(all_tree):
 	@mkdir -p "$@"

 ifneq ($(KBUILD_OUTPUT),)
 # Invoke a second make in the output directory, passing relevant variables
 # Check that the output directory actually exists
 saved-output := $(KBUILD_OUTPUT)
 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
 $(if $(wildcard $(KBUILD_OUTPUT)),, \
      $(error output directory "$(saved-output)" does not exist))

 .PHONY: $(MAKECMDGOALS)

 $(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile all_tree
 	$(MAKE) -C $(KBUILD_OUTPUT) \
 	top_srcdir=$(top_srcdir) \
 	top_builddir=$(top_builddir) \
 	KBUILD_SRC=$(top_srcdir) \
 	-f $(CURDIR)/Makefile $@

 $(KBUILD_OUTPUT)/Rules.mak:
 	@echo > $@
 	@echo top_srcdir=$(top_srcdir) >> $@
 	@echo top_builddir=$(KBUILD_OUTPUT) >> $@
 	@echo include $(top_srcdir)/Rules.mak >> $@

 $(KBUILD_OUTPUT)/Makefile:
 	@echo > $@
 	@echo top_srcdir=$(top_srcdir) >> $@
 	@echo top_builddir=$(KBUILD_OUTPUT) >> $@
 	@echo KBUILD_SRC='$$(top_srcdir)' >> $@
 	@echo include '$$(KBUILD_SRC)'/Makefile >> $@

 # Leave processing to above invocation of make
 skip-makefile := 1
 endif # ifneq ($(KBUILD_OUTPUT),)
 endif # ifeq ($(KBUILD_SRC),)

 ifeq ($(skip-makefile),)

 # We only need a copy of the Makefile for the config targets and reuse
 # the rest from the source directory, i.e. we do not cp ALL_MAKEFILES.
 scripts/config/Makefile: $(top_srcdir)/scripts/config/Makefile
 	cp $< $@

 _all: all

 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			- Executable and documentation'
 	@echo '  busybox		- the swiss-army executable'
 	@echo '  doc			- docs/BusyBox.{txt,html,1}'
 	@echo
 	@echo 'Configuration:'
 	@echo '  allnoconfig		- disable all symbols in .config'
 	@echo '  allyesconfig		- enable (almost) all symbols in .config'
 	@echo '  allbareconfig		- enable all basics without any features'
 	@echo '  config		- text based configurator (of last resort)'
 	@echo '  defconfig		- set .config to defaults'
 	@echo '  menuconfig		- interactive curses-based configurator'
 	@echo '  oldconfig		- resolve any unresolved symbols in .config'
 	@echo
 	@echo 'Installation:'
 	@echo '  install		- install busybox into $prefix'
 	@echo '  uninstall'
 	@echo
 	@echo 'Development:'
 	@echo '  check			- run the test suite for all applets'
 	@echo '  randconfig		- generate a random configuration'
 	@echo '  release		- create a distribution tarball'
 	@echo '  sizes			- show size of all enabled busybox symbols'
 	@echo


 include $(top_srcdir)/Rules.mak

 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

 # Default target if none was requested explicitly
 all: menuconfig

 # warn if no configuration exists and we are asked to build a non-config target
 .config:
 	@echo ""
 	@echo "No $(top_builddir)/$@ found!"
 	@echo "Please refer to 'make  help', section Configuration."
 	@echo ""
 	@exit 1

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

 scripts/config/conf: scripts/config/Makefile
 	$(MAKE) -C scripts/config conf
 	-@if [ ! -f .config ] ; then \
 		cp $(CONFIG_DEFCONFIG) .config; \
 	fi

 scripts/config/mconf: scripts/config/Makefile
 	$(MAKE) -C scripts/config ncurses conf mconf
 	-@if [ ! -f .config ] ; then \
 		cp $(CONFIG_DEFCONFIG) .config; \
 	fi

 menuconfig: scripts/config/mconf
 	@./scripts/config/mconf $(CONFIG_CONFIG_IN)

 config: scripts/config/conf
 	@./scripts/config/conf $(CONFIG_CONFIG_IN)

 oldconfig: scripts/config/conf
 	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

 randconfig: scripts/config/conf
 	@./scripts/config/conf -r $(CONFIG_CONFIG_IN)

 allyesconfig: scripts/config/conf
 	@./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 	sed -i -r -e "s/^(USING_CROSS_COMPILER|CONFIG_(DEBUG|STATIC|SELINUX|FEATURE_DEVFS|BUILD_AT_ONCE)).*/# \1 is not set/" .config
 	echo "CONFIG_FEATURE_SHARED_BUSYBOX=y" >> .config
 	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

 allnoconfig: scripts/config/conf
 	@./scripts/config/conf -n $(CONFIG_CONFIG_IN)

 defconfig: scripts/config/conf
 	@./scripts/config/conf -d $(CONFIG_CONFIG_IN)

 allbareconfig: scripts/config/conf
 	@./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 	@sed -i -r -e "s/^(USING_CROSS_COMPILER|CONFIG_(DEBUG|STATIC|SELINUX|DEVFSD|NC_GAPING_SECURITY_HOLE|BUILD_AT_ONCE)).*/# \1 is not set/" .config
 	@sed -i -e "/FEATURE/s/=.*//;/^[^#]/s/.*FEATURE.*/# \0 is not set/;" .config
 	@echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
 	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

 else # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

 all: busybox busybox.links doc

 # In this section, we need .config
 -include $(top_builddir)/.config.cmd
 include $(patsubst %,%/Makefile.in, $(SRC_DIRS))

 endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

 -include $(top_builddir)/.config
 -include $(top_builddir)/.depend


 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 libraries-y:=
 # Which parts of the internal libs are requested?
 # Per default we only want what was actually selected.
 # -a denotes all while -y denotes the selected ones.
 ifeq ($(strip $(CONFIG_FEATURE_FULL_LIBBUSYBOX)),y)
 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-a)
 LIBRARY_SRC   :=$(LIBRARY_SRC-a)
 else # CONFIG_FEATURE_FULL_LIBBUSYBOX
 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-y)
 LIBRARY_SRC   :=$(LIBRARY_SRC-y)
 endif # CONFIG_FEATURE_FULL_LIBBUSYBOX
 APPLET_SRC:=$(APPLET_SRC-y)
 APPLETS_DEFINE:=$(APPLETS_DEFINE-y)
 else  # CONFIG_BUILD_AT_ONCE
 # no --combine, build archives out of the individual .o
 # This was the old way the binary was built.
 libbusybox-obj:=archival/libunarchive/libunarchive.a \
 	networking/libiproute/libiproute.a \
 	libpwdgrp/libpwdgrp.a \
 	coreutils/libcoreutils/libcoreutils.a \
 	libbb/libbb.a
 libbusybox-obj:=$(patsubst %,$(top_builddir)/%,$(libbusybox-obj))

 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 # linking against libbusybox, so don't build the .a already contained in the .so
 libraries-y:=$(filter-out $(libbusybox-obj),$(libraries-y))
 endif # CONFIG_FEATURE_SHARED_BUSYBOX
 endif # CONFIG_BUILD_AT_ONCE


 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 LD_LIBBUSYBOX:=libbusybox.so
 LIBBUSYBOX_SONAME:=$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)
 DO_INSTALL_LIBS:=$(LD_LIBBUSYBOX) \
 	$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 	$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION)

 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 ifneq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 # --combine but not linking against libbusybox, so compile all
 BUSYBOX_SRC   := $(LIBRARY_SRC)
 BUSYBOX_DEFINE:= $(LIBRARY_DEFINE)
 endif # !CONFIG_FEATURE_SHARED_BUSYBOX
 $(LIBBUSYBOX_SONAME): $(LIBRARY_SRC)
 else # CONFIG_BUILD_AT_ONCE
 $(LIBBUSYBOX_SONAME): $(libbusybox-obj)
 endif # CONFIG_BUILD_AT_ONCE
 endif # CONFIG_BUILD_LIBBUSYBOX

 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 LDBUSYBOX:=-L$(top_builddir) -lbusybox
 endif

 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 $(LIBBUSYBOX_SONAME):
 ifndef MAJOR_VERSION
 	$(error MAJOR_VERSION needed for $@ is not defined)
 endif
 	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) -shared \
 	$(CFLAGS_PIC) \
 	-Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 	-Wl,-z,combreloc $(LIB_LDFLAGS) \
 	-o $(@) \
 	-Wl,--start-group -Wl,--whole-archive \
 	$(LIBRARY_DEFINE) $(^) \
 	-Wl,--no-whole-archive -Wl,--end-group
 	$(RM_F) $(DO_INSTALL_LIBS)
 	for i in $(DO_INSTALL_LIBS); do $(LN_S) -v $(@) $$i ; done
 	$(STRIPCMD) $@

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

 busybox: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(libraries-y)
 	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(PROG_CFLAGS) $(LDFLAGS)  \
 	-o $@ -Wl,--start-group  \
 	$(APPLETS_DEFINE) $(APPLET_SRC) \
 	$(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \
 	$(LDBUSYBOX) $(LIBRARIES) \
 	-Wl,--end-group
 	$(STRIPCMD) $@

 busybox.links: $(top_srcdir)/applets/busybox.mkll include/bb_config.h $(top_srcdir)/include/applets.h
 	- $(SHELL) $^ >$@

 install: $(top_srcdir)/applets/install.sh busybox busybox.links
 	DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
 		$(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
 ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
 	@echo
 	@echo
 	@echo --------------------------------------------------
 	@echo You will probably need to make your busybox binary
 	@echo setuid root to ensure all configured applets will
 	@echo work properly.
 	@echo --------------------------------------------------
 	@echo
 endif

 uninstall: busybox.links
 	$(RM_F) $(PREFIX)/bin/busybox
 	for i in `cat busybox.links` ; do $(RM_F) $(PREFIX)$$i; done
 ifneq ($(strip $(DO_INSTALL_LIBS)),n)
 	for i in $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS); do \
 		$(RM_F) $(PREFIX)$$i; \
 	done
 endif

 # see if we are in verbose mode
 KBUILD_VERBOSE :=
 ifdef V
   ifeq ("$(origin V)", "command line")
     KBUILD_VERBOSE := $(V)
   endif
 endif
 ifneq ($(strip $(KBUILD_VERBOSE)),)
   CHECK_VERBOSE := -v
 # ARFLAGS+=v
 endif
 check test: busybox
 	bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite \
 	$(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)

 sizes:
 	-$(RM_F) busybox
 	$(MAKE) top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) \
 		-f $(top_srcdir)/Makefile STRIPCMD=/bin/true
 	$(NM) --size-sort busybox

 # Documentation Targets
 doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html

 docs/busybox.pod : $(top_srcdir)/docs/busybox_header.pod $(top_srcdir)/include/usage.h $(top_srcdir)/docs/busybox_footer.pod
 	-mkdir -p docs
 	- ( cat $(top_srcdir)/docs/busybox_header.pod; \
 	    $(top_srcdir)/docs/autodocifier.pl $(top_srcdir)/include/usage.h; \
 	    cat $(top_srcdir)/docs/busybox_footer.pod ) > docs/busybox.pod

 docs/BusyBox.txt: docs/busybox.pod
 	$(SECHO)
 	$(SECHO) BusyBox Documentation
 	$(SECHO)
 	-mkdir -p docs
 	-pod2text $< > $@

 docs/BusyBox.1: docs/busybox.pod
 	- mkdir -p docs
 	- pod2man --center=BusyBox --release="version $(VERSION)" \
 		$< > $@

 docs/BusyBox.html: docs/busybox.net/BusyBox.html
 	- mkdir -p docs
 	-@ $(RM_F) docs/BusyBox.html
 	-@ cp docs/busybox.net/BusyBox.html docs/BusyBox.html

 docs/busybox.net/BusyBox.html: docs/busybox.pod
 	-@ mkdir -p docs/busybox.net
 	-  pod2html --noindex $< > \
 	    docs/busybox.net/BusyBox.html
 	-@ $(RM_F) pod2htm*

 # The nifty new buildsystem stuff
 scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
 	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<

 DEP_INCLUDES := include/config.h include/bb_config.h include/_usage.h

 ifeq ($(strip $(CONFIG_BBCONFIG)),y)
 DEP_INCLUDES += include/bbconfigopts.h

 include/bbconfigopts.h: .config
 	$(top_srcdir)/scripts/config/mkconfigs > $@
 endif

 depend dep: .depend
 .depend: scripts/bb_mkdep $(DEP_INCLUDES)
 	@$(RM_F) .depend
 	@mkdir -p include/config
 	scripts/bb_mkdep -c include/config.h -c include/bb_config.h \
 			-I $(top_srcdir)/include $(top_srcdir) > $@.tmp
 	mv $@.tmp $@

 include/config.h: .config
 	@if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
 	    $(MAKE) -C scripts/config conf; \
 	fi;
 	@$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)

 include/bb_config.h: include/config.h
 	@echo -e "#ifndef BB_CONFIG_H\n#define BB_CONFIG_H" > $@
 	@sed -e 's/#undef CONFIG_\(.*\)/#define ENABLE_\1 0/' \
 	    -e 's/#define CONFIG_\(.*\)/#define CONFIG_\1\n#define ENABLE_\1/' \
 		< $< >> $@
 	@echo "#endif" >> $@

 # Create macros for usage.h, e.g.:
 #if ENABLE_HAVE_DOT_CONFIG
 #define USAGE_HAVE_DOT_CONFIG(a) a
 #else
 #define USAGE_HAVE_DOT_CONFIG(a)
 #endif
 include/_usage.h: .config
 	awk '/CONFIG|BB_APPLET/{gsub("#[[:space:]]*|=y|.*CONFIG_|.*BB_APPLET_","");if(!/=/){print("#if ENABLE_"$$1"\n#define USAGE_"$$1"(a) a\n#else\n#define USAGE_"$$1"(a)\n#endif");}}' $(<) > $(@)

 clean:
 	- $(MAKE) -C scripts/config $@
 	- $(RM_F) docs/busybox.dvi docs/busybox.ps \
 	    docs/busybox.pod docs/busybox.net/busybox.html \
 	    docs/busybox pod2htm* *.gdb *.elf *~ core .*config.log \
 	    docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
 	    docs/busybox.net/BusyBox.html busybox.links \
 	    $(DO_INSTALL_LIBS) $(LIBBUSYBOX_SONAME) \
 	    .config.old busybox
 	- rm -rf _install testsuite/links
 	- find . -name .\*.flags -exec $(RM_F) {} \;
 	- find . -name \*.o -exec $(RM_F) {} \;
 	- find . -name \*.a -exec $(RM_F) {} \;
 	- find . -name \*.so -exec $(RM_F) {} \;

 distclean: clean
 	- $(RM_F) scripts/bb_mkdep
 	- rm -rf include/config $(DEP_INCLUDES)
 	- find . -name .depend -exec $(RM_F) {} \;
 	$(RM_F) .config .config.old .config.cmd

 release: distclean #doc
 	cd ..; \
 	rm -rf $(PROG)-$(VERSION); \
 	cp -a busybox $(PROG)-$(VERSION); \
 	\
 	find $(PROG)-$(VERSION)/ -type d \
 		-name .svn \
 		-print \
 		-exec rm -rf {} \; ; \
 	\
 	find $(PROG)-$(VERSION)/ -type f \
 		-name .\#* \
 		-print \
 		-exec $(RM_F) {} \; ; \
 	\
 	tar -cvzf $(PROG)-$(VERSION).tar.gz $(PROG)-$(VERSION)/;

 tags:
 	ctags -R .


 endif # ifeq ($(skip-makefile),)

 .PHONY: dummy subdirs release distclean clean config oldconfig \
 	menuconfig tags check test depend dep buildtree
	# Makefile for busybox
	#
	# Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
	#
	# Licensed under GPLv2, see the file LICENSE in this tarball for details.
	#

	#--------------------------------------------------------------
	# You shouldn't need to mess with anything beyond this point...
	#--------------------------------------------------------------
	noconfig_targets := menuconfig config oldconfig randconfig \
	defconfig allyesconfig allnoconfig allbareconfig \
	clean distclean \
	release tags

	# the toplevel sourcedir
	ifndef top_srcdir
	top_srcdir=$(CURDIR)
	endif
	# toplevel directory of the object-tree
	ifndef top_builddir
	top_builddir=$(CURDIR)
	endif

	export srctree=$(top_srcdir)
	vpath %/Config.in $(srctree)

	DIRS:=applets archival archival/libunarchive coreutils console-tools \
	debianutils editors findutils init miscutils modutils networking \
	networking/libiproute networking/udhcp procps loginutils shell \
	sysklogd util-linux e2fsprogs libpwdgrp coreutils/libcoreutils libbb

	SRC_DIRS:=$(patsubst %,$(top_srcdir)/%,$(DIRS))

	# That's our default target when none is given on the command line
	.PHONY: _all
	_all:

	CONFIG_CONFIG_IN = $(top_srcdir)/Config.in
	CONFIG_DEFCONFIG = $(top_srcdir)/defconfig

	ifeq ($(KBUILD_SRC),)

	ifdef O
	ifeq ("$(origin O)", "command line")
	KBUILD_OUTPUT := $(O)
	top_builddir := $(O)
	endif
	else
	# If no alternate output-dir was specified, we build in cwd
	# We are using KBUILD_OUTPUT nevertheless to make sure that we create
	# Rules.mak and the toplevel Makefile, in case they don't exist.
	KBUILD_OUTPUT := $(top_builddir)
	endif

	ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
	# pull in OS specific commands like cp, mkdir, etc. early
	-include $(top_srcdir)/Rules.mak
	endif

	# All object directories.
	OBJ_DIRS := $(DIRS)
	all_tree := $(patsubst %,$(top_builddir)/%,$(OBJ_DIRS) scripts scripts/config include)
	all_tree: $(all_tree)
	$(all_tree):
	@mkdir -p "$@"

	ifneq ($(KBUILD_OUTPUT),)
	# Invoke a second make in the output directory, passing relevant variables
	# Check that the output directory actually exists
	saved-output := $(KBUILD_OUTPUT)
	KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
	$(if $(wildcard $(KBUILD_OUTPUT)),, \
	$(error output directory "$(saved-output)" does not exist))

	.PHONY: $(MAKECMDGOALS)

	$(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile all_tree
	$(MAKE) -C $(KBUILD_OUTPUT) \
	top_srcdir=$(top_srcdir) \
	top_builddir=$(top_builddir) \
	KBUILD_SRC=$(top_srcdir) \
	-f $(CURDIR)/Makefile $@

	$(KBUILD_OUTPUT)/Rules.mak:
	@echo > $@
	@echo top_srcdir=$(top_srcdir) >> $@
	@echo top_builddir=$(KBUILD_OUTPUT) >> $@
	@echo include $(top_srcdir)/Rules.mak >> $@

	$(KBUILD_OUTPUT)/Makefile:
	@echo > $@
	@echo top_srcdir=$(top_srcdir) >> $@
	@echo top_builddir=$(KBUILD_OUTPUT) >> $@
	@echo KBUILD_SRC='$$(top_srcdir)' >> $@
	@echo include '$$(KBUILD_SRC)'/Makefile >> $@

	# Leave processing to above invocation of make
	skip-makefile := 1
	endif # ifneq ($(KBUILD_OUTPUT),)
	endif # ifeq ($(KBUILD_SRC),)

	ifeq ($(skip-makefile),)

	# We only need a copy of the Makefile for the config targets and reuse
	# the rest from the source directory, i.e. we do not cp ALL_MAKEFILES.
	scripts/config/Makefile: $(top_srcdir)/scripts/config/Makefile
	cp $< $@

	_all: all

	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 - Executable and documentation'
	@echo ' busybox - the swiss-army executable'
	@echo ' doc - docs/BusyBox.{txt,html,1}'
	@echo
	@echo 'Configuration:'
	@echo ' allnoconfig - disable all symbols in .config'
	@echo ' allyesconfig - enable (almost) all symbols in .config'
	@echo ' allbareconfig - enable all basics without any features'
	@echo ' config - text based configurator (of last resort)'
	@echo ' defconfig - set .config to defaults'
	@echo ' menuconfig - interactive curses-based configurator'
	@echo ' oldconfig - resolve any unresolved symbols in .config'
	@echo
	@echo 'Installation:'
	@echo ' install - install busybox into $prefix'
	@echo ' uninstall'
	@echo
	@echo 'Development:'
	@echo ' check - run the test suite for all applets'
	@echo ' randconfig - generate a random configuration'
	@echo ' release - create a distribution tarball'
	@echo ' sizes - show size of all enabled busybox symbols'
	@echo


	include $(top_srcdir)/Rules.mak

	ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

	# Default target if none was requested explicitly
	all: menuconfig

	# warn if no configuration exists and we are asked to build a non-config target
	.config:
	@echo ""
	@echo "No $(top_builddir)/$@ found!"
	@echo "Please refer to 'make help', section Configuration."
	@echo ""
	@exit 1

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

	scripts/config/conf: scripts/config/Makefile
	$(MAKE) -C scripts/config conf
	-@if [ ! -f .config ] ; then \
	cp $(CONFIG_DEFCONFIG) .config; \
	fi

	scripts/config/mconf: scripts/config/Makefile
	$(MAKE) -C scripts/config ncurses conf mconf
	-@if [ ! -f .config ] ; then \
	cp $(CONFIG_DEFCONFIG) .config; \
	fi

	menuconfig: scripts/config/mconf
	@./scripts/config/mconf $(CONFIG_CONFIG_IN)

	config: scripts/config/conf
	@./scripts/config/conf $(CONFIG_CONFIG_IN)

	oldconfig: scripts/config/conf
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

	randconfig: scripts/config/conf
	@./scripts/config/conf -r $(CONFIG_CONFIG_IN)

	allyesconfig: scripts/config/conf
	@./scripts/config/conf -y $(CONFIG_CONFIG_IN)
	sed -i -r -e "s/^(USING_CROSS_COMPILER\|CONFIG_(DEBUG\|STATIC\|SELINUX\|FEATURE_DEVFS\|BUILD_AT_ONCE)).*/# \1 is not set/" .config
	echo "CONFIG_FEATURE_SHARED_BUSYBOX=y" >> .config
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

	allnoconfig: scripts/config/conf
	@./scripts/config/conf -n $(CONFIG_CONFIG_IN)

	defconfig: scripts/config/conf
	@./scripts/config/conf -d $(CONFIG_CONFIG_IN)

	allbareconfig: scripts/config/conf
	@./scripts/config/conf -y $(CONFIG_CONFIG_IN)
	@sed -i -r -e "s/^(USING_CROSS_COMPILER\|CONFIG_(DEBUG\|STATIC\|SELINUX\|DEVFSD\|NC_GAPING_SECURITY_HOLE\|BUILD_AT_ONCE)).*/# \1 is not set/" .config
	@sed -i -e "/FEATURE/s/=.//;/^[^#]/s/.FEATURE.*/# \0 is not set/;" .config
	@echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

	else # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

	all: busybox busybox.links doc

	# In this section, we need .config
	-include $(top_builddir)/.config.cmd
	include $(patsubst %,%/Makefile.in, $(SRC_DIRS))

	endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

	-include $(top_builddir)/.config
	-include $(top_builddir)/.depend


	ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
	libraries-y:=
	# Which parts of the internal libs are requested?
	# Per default we only want what was actually selected.
	# -a denotes all while -y denotes the selected ones.
	ifeq ($(strip $(CONFIG_FEATURE_FULL_LIBBUSYBOX)),y)
	LIBRARY_DEFINE:=$(LIBRARY_DEFINE-a)
	LIBRARY_SRC :=$(LIBRARY_SRC-a)
	else # CONFIG_FEATURE_FULL_LIBBUSYBOX
	LIBRARY_DEFINE:=$(LIBRARY_DEFINE-y)
	LIBRARY_SRC :=$(LIBRARY_SRC-y)
	endif # CONFIG_FEATURE_FULL_LIBBUSYBOX
	APPLET_SRC:=$(APPLET_SRC-y)
	APPLETS_DEFINE:=$(APPLETS_DEFINE-y)
	else # CONFIG_BUILD_AT_ONCE
	# no --combine, build archives out of the individual .o
	# This was the old way the binary was built.
	libbusybox-obj:=archival/libunarchive/libunarchive.a \
	networking/libiproute/libiproute.a \
	libpwdgrp/libpwdgrp.a \
	coreutils/libcoreutils/libcoreutils.a \
	libbb/libbb.a
	libbusybox-obj:=$(patsubst %,$(top_builddir)/%,$(libbusybox-obj))

	ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
	# linking against libbusybox, so don't build the .a already contained in the .so
	libraries-y:=$(filter-out $(libbusybox-obj),$(libraries-y))
	endif # CONFIG_FEATURE_SHARED_BUSYBOX
	endif # CONFIG_BUILD_AT_ONCE


	ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
	LD_LIBBUSYBOX:=libbusybox.so
	LIBBUSYBOX_SONAME:=$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)
	DO_INSTALL_LIBS:=$(LD_LIBBUSYBOX) \
	$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
	$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION)

	ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
	ifneq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
	# --combine but not linking against libbusybox, so compile all
	BUSYBOX_SRC := $(LIBRARY_SRC)
	BUSYBOX_DEFINE:= $(LIBRARY_DEFINE)
	endif # !CONFIG_FEATURE_SHARED_BUSYBOX
	$(LIBBUSYBOX_SONAME): $(LIBRARY_SRC)
	else # CONFIG_BUILD_AT_ONCE
	$(LIBBUSYBOX_SONAME): $(libbusybox-obj)
	endif # CONFIG_BUILD_AT_ONCE
	endif # CONFIG_BUILD_LIBBUSYBOX

	ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
	LDBUSYBOX:=-L$(top_builddir) -lbusybox
	endif

	ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
	$(LIBBUSYBOX_SONAME):
	ifndef MAJOR_VERSION
	$(error MAJOR_VERSION needed for $@ is not defined)
	endif
	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) -shared \
	$(CFLAGS_PIC) \
	-Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
	-Wl,-z,combreloc $(LIB_LDFLAGS) \
	-o $(@) \
	-Wl,--start-group -Wl,--whole-archive \
	$(LIBRARY_DEFINE) $(^) \
	-Wl,--no-whole-archive -Wl,--end-group
	$(RM_F) $(DO_INSTALL_LIBS)
	for i in $(DO_INSTALL_LIBS); do $(LN_S) -v $(@) $$i ; done
	$(STRIPCMD) $@

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

	busybox: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(libraries-y)
	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(PROG_CFLAGS) $(LDFLAGS) \
	-o $@ -Wl,--start-group \
	$(APPLETS_DEFINE) $(APPLET_SRC) \
	$(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \
	$(LDBUSYBOX) $(LIBRARIES) \
	-Wl,--end-group
	$(STRIPCMD) $@

	busybox.links: $(top_srcdir)/applets/busybox.mkll include/bb_config.h $(top_srcdir)/include/applets.h
	- $(SHELL) $^ >$@

	install: $(top_srcdir)/applets/install.sh busybox busybox.links
	DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
	$(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
	ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
	@echo
	@echo
	@echo --------------------------------------------------
	@echo You will probably need to make your busybox binary
	@echo setuid root to ensure all configured applets will
	@echo work properly.
	@echo --------------------------------------------------
	@echo
	endif

	uninstall: busybox.links
	$(RM_F) $(PREFIX)/bin/busybox
	for i in `cat busybox.links` ; do $(RM_F) $(PREFIX)$$i; done
	ifneq ($(strip $(DO_INSTALL_LIBS)),n)
	for i in $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS); do \
	$(RM_F) $(PREFIX)$$i; \
	done
	endif

	# see if we are in verbose mode
	KBUILD_VERBOSE :=
	ifdef V
	ifeq ("$(origin V)", "command line")
	KBUILD_VERBOSE := $(V)
	endif
	endif
	ifneq ($(strip $(KBUILD_VERBOSE)),)
	CHECK_VERBOSE := -v
	# ARFLAGS+=v
	endif
	check test: busybox
	bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite \
	$(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)

	sizes:
	-$(RM_F) busybox
	$(MAKE) top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) \
	-f $(top_srcdir)/Makefile STRIPCMD=/bin/true
	$(NM) --size-sort busybox

	# Documentation Targets
	doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html

	docs/busybox.pod : $(top_srcdir)/docs/busybox_header.pod $(top_srcdir)/include/usage.h $(top_srcdir)/docs/busybox_footer.pod
	-mkdir -p docs
	- ( cat $(top_srcdir)/docs/busybox_header.pod; \
	$(top_srcdir)/docs/autodocifier.pl $(top_srcdir)/include/usage.h; \
	cat $(top_srcdir)/docs/busybox_footer.pod ) > docs/busybox.pod

	docs/BusyBox.txt: docs/busybox.pod
	$(SECHO)
	$(SECHO) BusyBox Documentation
	$(SECHO)
	-mkdir -p docs
	-pod2text $< > $@

	docs/BusyBox.1: docs/busybox.pod
	- mkdir -p docs
	- pod2man --center=BusyBox --release="version $(VERSION)" \
	$< > $@

	docs/BusyBox.html: docs/busybox.net/BusyBox.html
	- mkdir -p docs
	-@ $(RM_F) docs/BusyBox.html
	-@ cp docs/busybox.net/BusyBox.html docs/BusyBox.html

	docs/busybox.net/BusyBox.html: docs/busybox.pod
	-@ mkdir -p docs/busybox.net
	- pod2html --noindex $< > \
	docs/busybox.net/BusyBox.html
	-@ $(RM_F) pod2htm*

	# The nifty new buildsystem stuff
	scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<

	DEP_INCLUDES := include/config.h include/bb_config.h include/_usage.h

	ifeq ($(strip $(CONFIG_BBCONFIG)),y)
	DEP_INCLUDES += include/bbconfigopts.h

	include/bbconfigopts.h: .config
	$(top_srcdir)/scripts/config/mkconfigs > $@
	endif

	depend dep: .depend
	.depend: scripts/bb_mkdep $(DEP_INCLUDES)
	@$(RM_F) .depend
	@mkdir -p include/config
	scripts/bb_mkdep -c include/config.h -c include/bb_config.h \
	-I $(top_srcdir)/include $(top_srcdir) > $@.tmp
	mv $@.tmp $@

	include/config.h: .config
	@if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
	$(MAKE) -C scripts/config conf; \
	fi;
	@$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)

	include/bb_config.h: include/config.h
	@echo -e "#ifndef BB_CONFIG_H\n#define BB_CONFIG_H" > $@
	@sed -e 's/#undef CONFIG_\(.*\)/#define ENABLE_\1 0/' \
	-e 's/#define CONFIG_\(.*\)/#define CONFIG_\1\n#define ENABLE_\1/' \
	< $< >> $@
	@echo "#endif" >> $@

	# Create macros for usage.h, e.g.:
	#if ENABLE_HAVE_DOT_CONFIG
	#define USAGE_HAVE_DOT_CONFIG(a) a
	#else
	#define USAGE_HAVE_DOT_CONFIG(a)
	#endif
	include/_usage.h: .config
	awk '/CONFIG\|BB_APPLET/{gsub("#[[:space:]]\|=y\|.CONFIG_\|.*BB_APPLET_","");if(!/=/){print("#if ENABLE_"$$1"\n#define USAGE_"$$1"(a) a\n#else\n#define USAGE_"$$1"(a)\n#endif");}}' $(<) > $(@)

	clean:
	- $(MAKE) -C scripts/config $@
	- $(RM_F) docs/busybox.dvi docs/busybox.ps \
	docs/busybox.pod docs/busybox.net/busybox.html \
	docs/busybox pod2htm* .gdb .elf ~ core .config.log \
	docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
	docs/busybox.net/BusyBox.html busybox.links \
	$(DO_INSTALL_LIBS) $(LIBBUSYBOX_SONAME) \
	.config.old busybox
	- rm -rf _install testsuite/links
	- find . -name .\*.flags -exec $(RM_F) {} \;
	- find . -name \*.o -exec $(RM_F) {} \;
	- find . -name \*.a -exec $(RM_F) {} \;
	- find . -name \*.so -exec $(RM_F) {} \;

	distclean: clean
	- $(RM_F) scripts/bb_mkdep
	- rm -rf include/config $(DEP_INCLUDES)
	- find . -name .depend -exec $(RM_F) {} \;
	$(RM_F) .config .config.old .config.cmd

	release: distclean #doc
	cd ..; \
	rm -rf $(PROG)-$(VERSION); \
	cp -a busybox $(PROG)-$(VERSION); \
	\
	find $(PROG)-$(VERSION)/ -type d \
	-name .svn \
	-print \
	-exec rm -rf {} \; ; \
	\
	find $(PROG)-$(VERSION)/ -type f \
	-name .\#* \
	-print \
	-exec $(RM_F) {} \; ; \
	\
	tar -cvzf $(PROG)-$(VERSION).tar.gz $(PROG)-$(VERSION)/;

	tags:
	ctags -R .


	endif # ifeq ($(skip-makefile),)

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