package/pkg-autotools.mk - buildroot - Git at Google

 ################################################################################
 # Autotools package infrastructure
 #
 # This file implements an infrastructure that eases development of
 # package .mk files for autotools packages. It should be used for all
 # packages that use the autotools as their build system.
 #
 # See the Buildroot documentation for details on the usage of this
 # infrastructure
 #
 # In terms of implementation, this autotools infrastructure requires
 # the .mk file to only specify metadata information about the
 # package: name, version, download URL, etc.
 #
 # We still allow the package .mk file to override what the different
 # steps are doing, if needed. For example, if <PKG>_BUILD_CMDS is
 # already defined, it is used as the list of commands to perform to
 # build the package, instead of the default autotools behaviour. The
 # package can also define some post operation hooks.
 #
 ################################################################################


 #
 # Utility function to upgrade config.sub and config.guess files
 #
 # argument 1 : directory into which config.guess and config.sub need
 # to be updated. Note that config.sub and config.guess are searched
 # recursively in this directory.
 #
 define CONFIG_UPDATE
 	for file in config.guess config.sub; do \
 		for i in $$(find $(1) -name $$file); do \
 			cp support/gnuconfig/$$file $$i; \
 		done; \
 	done
 endef

 # This function generates the ac_cv_file_<foo> value for a given
 # filename. This is needed to convince configure script doing
 # AC_CHECK_FILE() tests that the file actually exists, since such
 # tests cannot be done in a cross-compilation context. This function
 # takes as argument the path of the file. An example usage is:
 #
 #  FOOBAR_CONF_ENV = \
 #	$(call AUTOCONF_AC_CHECK_FILE_VAL,/dev/random)=yes
 AUTOCONF_AC_CHECK_FILE_VAL = ac_cv_file_$(subst -,_,$(subst /,_,$(subst .,_,$(1))))

 #
 # Hook to update config.sub and config.guess if needed
 #
 define UPDATE_CONFIG_HOOK
 	@$(call MESSAGE,"Updating config.sub and config.guess")
 	$(call CONFIG_UPDATE,$(@D))
 endef

 #
 # Hook to patch libtool to make it work properly for cross-compilation
 #
 define LIBTOOL_PATCH_HOOK
 	@$(call MESSAGE,"Patching libtool")
 	$(Q)for i in `find $($(PKG)_DIR) -name ltmain.sh`; do \
 		ltmain_version=`sed -n '/^[ \t]*VERSION=/{s/^[ \t]*VERSION=//;p;q;}' $$i | \
 		sed -e 's/\([0-9]*\.[0-9]*\).*/\1/' -e 's/\"//'`; \
 		ltmain_patchlevel=`sed -n '/^[ \t]*VERSION=/{s/^[ \t]*VERSION=//;p;q;}' $$i | \
 		sed -e 's/\([0-9]*\.[0-9]*\.*\)\([0-9]*\).*/\2/' -e 's/\"//'`; \
 		if test $${ltmain_version} = '1.5'; then \
 			patch -i support/libtool/buildroot-libtool-v1.5.patch $${i}; \
 		elif test $${ltmain_version} = "2.2"; then\
 			patch -i support/libtool/buildroot-libtool-v2.2.patch $${i}; \
 		elif test $${ltmain_version} = "2.4"; then\
 			if test $${ltmain_patchlevel:-0} -gt 2; then\
 				patch -i support/libtool/buildroot-libtool-v2.4.4.patch $${i}; \
 			else \
 				patch -i support/libtool/buildroot-libtool-v2.4.patch $${i}; \
 			fi \
 		fi \
 	done
 endef

 #
 # Hook to patch common issue with configure on powerpc64{,le} failing
 # to detect shared library support:
 #
 define CONFIGURE_FIX_POWERPC64_HOOK
 	@$(call MESSAGE,"Checking configure (powerpc64/powerpc64le)")
 	support/scripts/fix-configure-powerpc64.sh $($(PKG)_DIR)
 endef

 #
 # Hook to autoreconf the package if needed
 #
 define AUTORECONF_HOOK
 	@$(call MESSAGE,"Autoreconfiguring")
 	$(Q)cd $($(PKG)_SRCDIR) && $($(PKG)_AUTORECONF_ENV) $(AUTORECONF) $($(PKG)_AUTORECONF_OPTS)
 endef

 ################################################################################
 # inner-autotools-package -- defines how the configuration, compilation and
 # installation of an autotools package should be done, implements a
 # few hooks to tune the build process for autotools specifities and
 # calls the generic package infrastructure to generate the necessary
 # make targets
 #
 #  argument 1 is the lowercase package name
 #  argument 2 is the uppercase package name, including a HOST_ prefix
 #             for host packages
 #  argument 3 is the uppercase package name, without the HOST_ prefix
 #             for host packages
 #  argument 4 is the type (target or host)
 ################################################################################

 define inner-autotools-package

 ifndef $(2)_LIBTOOL_PATCH
  ifdef $(3)_LIBTOOL_PATCH
   $(2)_LIBTOOL_PATCH = $$($(3)_LIBTOOL_PATCH)
  else
   $(2)_LIBTOOL_PATCH ?= YES
  endif
 endif

 ifndef $(2)_MAKE
  ifdef $(3)_MAKE
   $(2)_MAKE = $$($(3)_MAKE)
  else
   $(2)_MAKE ?= $$(MAKE)
  endif
 endif

 ifndef $(2)_AUTORECONF
  ifdef $(3)_AUTORECONF
   $(2)_AUTORECONF = $$($(3)_AUTORECONF)
  else
   $(2)_AUTORECONF ?= NO
  endif
 endif

 ifndef $(2)_AUTOPOINT
  ifdef $(3)_AUTOPOINT
   $(2)_AUTOPOINT = $$($(3)_AUTOPOINT)
  else
   $(2)_AUTOPOINT ?= NO
  endif
 endif


 ifeq ($(4),host)
  $(2)_AUTORECONF_OPTS ?= $$($(3)_AUTORECONF_OPTS)
 endif

 $(2)_INSTALL_OPTS                ?= install
 $(2)_INSTALL_STAGING_OPTS	?= DESTDIR=$$(STAGING_DIR) install
 $(2)_INSTALL_TARGET_OPTS		?= DESTDIR=$$(TARGET_DIR) install

 #
 # Configure step. Only define it if not already defined by the package
 # .mk file. And take care of the differences between host and target
 # packages.
 #
 ifndef $(2)_CONFIGURE_CMDS
 ifeq ($(4),target)

 # Configure package for target
 define $(2)_CONFIGURE_CMDS
 	(cd $$($$(PKG)_SRCDIR) && rm -rf config.cache && \
 	$$(TARGET_CONFIGURE_OPTS) \
 	$$(TARGET_CONFIGURE_ARGS) \
 	$$($$(PKG)_CONF_ENV) \
 	CONFIG_SITE=/dev/null \
 	./configure \
 		--target=$$(GNU_TARGET_NAME) \
 		--host=$$(GNU_TARGET_NAME) \
 		--build=$$(GNU_HOST_NAME) \
 		--prefix=/usr \
 		--exec-prefix=/usr \
 		--sysconfdir=/etc \
 		--localstatedir=/var \
 		--program-prefix="" \
 		--disable-gtk-doc \
 		--disable-gtk-doc-html \
 		--disable-doc \
 		--disable-docs \
 		--disable-documentation \
 		--with-xmlto=no \
 		--with-fop=no \
 		$$(if $$($$(PKG)_OVERRIDE_SRCDIR),,--disable-dependency-tracking) \
 		--enable-ipv6 \
 		$$(NLS_OPTS) \
 		$$(SHARED_STATIC_LIBS_OPTS) \
 		$$(QUIET) $$($$(PKG)_CONF_OPTS) \
 	)
 endef
 else

 # Configure package for host
 # disable all kind of documentation generation in the process,
 # because it often relies on host tools which may or may not be
 # installed.
 define $(2)_CONFIGURE_CMDS
 	(cd $$($$(PKG)_SRCDIR) && rm -rf config.cache; \
 	$$(HOST_CONFIGURE_OPTS) \
 	CFLAGS="$$(HOST_CFLAGS)" \
 	LDFLAGS="$$(HOST_LDFLAGS)" \
 	$$($$(PKG)_CONF_ENV) \
 	CONFIG_SITE=/dev/null \
 	./configure \
 		--prefix="$$(HOST_DIR)" \
 		--sysconfdir="$$(HOST_DIR)/etc" \
 		--localstatedir="$$(HOST_DIR)/var" \
 		--enable-shared --disable-static \
 		--disable-gtk-doc \
 		--disable-gtk-doc-html \
 		--disable-doc \
 		--disable-docs \
 		--disable-documentation \
 		--disable-debug \
 		--with-xmlto=no \
 		--with-fop=no \
 		--disable-nls \
 		$$(if $$($$(PKG)_OVERRIDE_SRCDIR),,--disable-dependency-tracking) \
 		$$(QUIET) $$($$(PKG)_CONF_OPTS) \
 	)
 endef
 endif
 endif

 $(2)_POST_PATCH_HOOKS += UPDATE_CONFIG_HOOK

 ifeq ($$($(2)_AUTORECONF),YES)

 # autopoint is provided by gettext
 ifeq ($$($(2)_AUTOPOINT),YES)
 $(2)_DEPENDENCIES += host-gettext
 $(2)_AUTORECONF_ENV += AUTOPOINT=$$(HOST_DIR)/bin/autopoint
 else
 $(2)_AUTORECONF_ENV += AUTOPOINT=/bin/true
 endif
 $(2)_PRE_CONFIGURE_HOOKS += AUTORECONF_HOOK
 # default values are not evaluated yet, so don't rely on this defaulting to YES
 ifneq ($$($(2)_LIBTOOL_PATCH),NO)
 $(2)_PRE_CONFIGURE_HOOKS += LIBTOOL_PATCH_HOOK
 endif
 $(2)_DEPENDENCIES += host-automake host-autoconf host-libtool

 else # ! AUTORECONF = YES

 # default values are not evaluated yet, so don't rely on this defaulting to YES
 ifneq ($$($(2)_LIBTOOL_PATCH),NO)
 $(2)_POST_PATCH_HOOKS += LIBTOOL_PATCH_HOOK
 endif

 endif

 # Append a configure hook if building for a powerpc64 (or powerpc64le) arch.
 # Must be added after other pre-configure hooks that might regenerate the
 # configure script and overwrite the changes made here.
 ifneq ($$(filter powerpc64%,$$(if $$(filter target,$(4)),$$(ARCH),$$(HOSTARCH))),)
 $(2)_PRE_CONFIGURE_HOOKS += CONFIGURE_FIX_POWERPC64_HOOK
 endif

 #
 # Build step. Only define it if not already defined by the package .mk
 # file.
 #
 ifndef $(2)_BUILD_CMDS
 ifeq ($(4),target)
 define $(2)_BUILD_CMDS
 	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) -C $$($$(PKG)_SRCDIR)
 endef
 else
 define $(2)_BUILD_CMDS
 	$$(HOST_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) -C $$($$(PKG)_SRCDIR)
 endef
 endif
 endif

 #
 # Host installation step. Only define it if not already defined by the
 # package .mk file.
 #
 ifndef $(2)_INSTALL_CMDS
 define $(2)_INSTALL_CMDS
 	$$(HOST_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_INSTALL_OPTS) -C $$($$(PKG)_SRCDIR)
 endef
 endif

 #
 # Staging installation step. Only define it if not already defined by
 # the package .mk file.
 #
 ifndef $(2)_INSTALL_STAGING_CMDS
 define $(2)_INSTALL_STAGING_CMDS
 	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_INSTALL_STAGING_OPTS) -C $$($$(PKG)_SRCDIR)
 endef
 endif

 #
 # Target installation step. Only define it if not already defined by
 # the package .mk file.
 #
 ifndef $(2)_INSTALL_TARGET_CMDS
 define $(2)_INSTALL_TARGET_CMDS
 	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_INSTALL_TARGET_OPTS) -C $$($$(PKG)_SRCDIR)
 endef
 endif

 # Call the generic package infrastructure to generate the necessary
 # make targets
 $(call inner-generic-package,$(1),$(2),$(3),$(4))

 endef

 ################################################################################
 # autotools-package -- the target generator macro for autotools packages
 ################################################################################

 autotools-package = $(call inner-autotools-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
 host-autotools-package = $(call inner-autotools-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)
	################################################################################
	# Autotools package infrastructure
	#
	# This file implements an infrastructure that eases development of
	# package .mk files for autotools packages. It should be used for all
	# packages that use the autotools as their build system.
	#
	# See the Buildroot documentation for details on the usage of this
	# infrastructure
	#
	# In terms of implementation, this autotools infrastructure requires
	# the .mk file to only specify metadata information about the
	# package: name, version, download URL, etc.
	#
	# We still allow the package .mk file to override what the different
	# steps are doing, if needed. For example, if <PKG>_BUILD_CMDS is
	# already defined, it is used as the list of commands to perform to
	# build the package, instead of the default autotools behaviour. The
	# package can also define some post operation hooks.
	#
	################################################################################


	#
	# Utility function to upgrade config.sub and config.guess files
	#
	# argument 1 : directory into which config.guess and config.sub need
	# to be updated. Note that config.sub and config.guess are searched
	# recursively in this directory.
	#
	define CONFIG_UPDATE
	for file in config.guess config.sub; do \
	for i in $$(find $(1) -name $$file); do \
	cp support/gnuconfig/$$file $$i; \
	done; \
	done
	endef

	# This function generates the ac_cv_file_<foo> value for a given
	# filename. This is needed to convince configure script doing
	# AC_CHECK_FILE() tests that the file actually exists, since such
	# tests cannot be done in a cross-compilation context. This function
	# takes as argument the path of the file. An example usage is:
	#
	# FOOBAR_CONF_ENV = \
	# $(call AUTOCONF_AC_CHECK_FILE_VAL,/dev/random)=yes
	AUTOCONF_AC_CHECK_FILE_VAL = ac_cv_file_$(subst -,_,$(subst /,_,$(subst .,_,$(1))))

	#
	# Hook to update config.sub and config.guess if needed
	#
	define UPDATE_CONFIG_HOOK
	@$(call MESSAGE,"Updating config.sub and config.guess")
	$(call CONFIG_UPDATE,$(@D))
	endef

	#
	# Hook to patch libtool to make it work properly for cross-compilation
	#
	define LIBTOOL_PATCH_HOOK
	@$(call MESSAGE,"Patching libtool")
	$(Q)for i in `find $($(PKG)_DIR) -name ltmain.sh`; do \
	ltmain_version=`sed -n '/^[ \t]VERSION=/{s/^[ \t]VERSION=//;p;q;}' $$i \| \
	sed -e 's/\([0-9]\.[0-9]\).*/\1/' -e 's/\"//'`; \
	ltmain_patchlevel=`sed -n '/^[ \t]VERSION=/{s/^[ \t]VERSION=//;p;q;}' $$i \| \
	sed -e 's/\([0-9]\.[0-9]\.\)\([0-9]\).*/\2/' -e 's/\"//'`; \
	if test $${ltmain_version} = '1.5'; then \
	patch -i support/libtool/buildroot-libtool-v1.5.patch $${i}; \
	elif test $${ltmain_version} = "2.2"; then\
	patch -i support/libtool/buildroot-libtool-v2.2.patch $${i}; \
	elif test $${ltmain_version} = "2.4"; then\
	if test $${ltmain_patchlevel:-0} -gt 2; then\
	patch -i support/libtool/buildroot-libtool-v2.4.4.patch $${i}; \
	else \
	patch -i support/libtool/buildroot-libtool-v2.4.patch $${i}; \
	fi \
	fi \
	done
	endef

	#
	# Hook to patch common issue with configure on powerpc64{,le} failing
	# to detect shared library support:
	#
	define CONFIGURE_FIX_POWERPC64_HOOK
	@$(call MESSAGE,"Checking configure (powerpc64/powerpc64le)")
	support/scripts/fix-configure-powerpc64.sh $($(PKG)_DIR)
	endef

	#
	# Hook to autoreconf the package if needed
	#
	define AUTORECONF_HOOK
	@$(call MESSAGE,"Autoreconfiguring")
	$(Q)cd $($(PKG)_SRCDIR) && $($(PKG)_AUTORECONF_ENV) $(AUTORECONF) $($(PKG)_AUTORECONF_OPTS)
	endef

	################################################################################
	# inner-autotools-package -- defines how the configuration, compilation and
	# installation of an autotools package should be done, implements a
	# few hooks to tune the build process for autotools specifities and
	# calls the generic package infrastructure to generate the necessary
	# make targets
	#
	# argument 1 is the lowercase package name
	# argument 2 is the uppercase package name, including a HOST_ prefix
	# for host packages
	# argument 3 is the uppercase package name, without the HOST_ prefix
	# for host packages
	# argument 4 is the type (target or host)
	################################################################################

	define inner-autotools-package

	ifndef $(2)_LIBTOOL_PATCH
	ifdef $(3)_LIBTOOL_PATCH
	$(2)_LIBTOOL_PATCH = $$($(3)_LIBTOOL_PATCH)
	else
	$(2)_LIBTOOL_PATCH ?= YES
	endif
	endif

	ifndef $(2)_MAKE
	ifdef $(3)_MAKE
	$(2)_MAKE = $$($(3)_MAKE)
	else
	$(2)_MAKE ?= $$(MAKE)
	endif
	endif

	ifndef $(2)_AUTORECONF
	ifdef $(3)_AUTORECONF
	$(2)_AUTORECONF = $$($(3)_AUTORECONF)
	else
	$(2)_AUTORECONF ?= NO
	endif
	endif

	ifndef $(2)_AUTOPOINT
	ifdef $(3)_AUTOPOINT
	$(2)_AUTOPOINT = $$($(3)_AUTOPOINT)
	else
	$(2)_AUTOPOINT ?= NO
	endif
	endif


	ifeq ($(4),host)
	$(2)_AUTORECONF_OPTS ?= $$($(3)_AUTORECONF_OPTS)
	endif

	$(2)_INSTALL_OPTS ?= install
	$(2)_INSTALL_STAGING_OPTS ?= DESTDIR=$$(STAGING_DIR) install
	$(2)_INSTALL_TARGET_OPTS ?= DESTDIR=$$(TARGET_DIR) install

	#
	# Configure step. Only define it if not already defined by the package
	# .mk file. And take care of the differences between host and target
	# packages.
	#
	ifndef $(2)_CONFIGURE_CMDS
	ifeq ($(4),target)

	# Configure package for target
	define $(2)_CONFIGURE_CMDS
	(cd $$($$(PKG)_SRCDIR) && rm -rf config.cache && \
	$$(TARGET_CONFIGURE_OPTS) \
	$$(TARGET_CONFIGURE_ARGS) \
	$$($$(PKG)_CONF_ENV) \
	CONFIG_SITE=/dev/null \
	./configure \
	--target=$$(GNU_TARGET_NAME) \
	--host=$$(GNU_TARGET_NAME) \
	--build=$$(GNU_HOST_NAME) \
	--prefix=/usr \
	--exec-prefix=/usr \
	--sysconfdir=/etc \
	--localstatedir=/var \
	--program-prefix="" \
	--disable-gtk-doc \
	--disable-gtk-doc-html \
	--disable-doc \
	--disable-docs \
	--disable-documentation \
	--with-xmlto=no \
	--with-fop=no \
	$$(if $$($$(PKG)_OVERRIDE_SRCDIR),,--disable-dependency-tracking) \
	--enable-ipv6 \
	$$(NLS_OPTS) \
	$$(SHARED_STATIC_LIBS_OPTS) \
	$$(QUIET) $$($$(PKG)_CONF_OPTS) \
	)
	endef
	else

	# Configure package for host
	# disable all kind of documentation generation in the process,
	# because it often relies on host tools which may or may not be
	# installed.
	define $(2)_CONFIGURE_CMDS
	(cd $$($$(PKG)_SRCDIR) && rm -rf config.cache; \
	$$(HOST_CONFIGURE_OPTS) \
	CFLAGS="$$(HOST_CFLAGS)" \
	LDFLAGS="$$(HOST_LDFLAGS)" \
	$$($$(PKG)_CONF_ENV) \
	CONFIG_SITE=/dev/null \
	./configure \
	--prefix="$$(HOST_DIR)" \
	--sysconfdir="$$(HOST_DIR)/etc" \
	--localstatedir="$$(HOST_DIR)/var" \
	--enable-shared --disable-static \
	--disable-gtk-doc \
	--disable-gtk-doc-html \
	--disable-doc \
	--disable-docs \
	--disable-documentation \
	--disable-debug \
	--with-xmlto=no \
	--with-fop=no \
	--disable-nls \
	$$(if $$($$(PKG)_OVERRIDE_SRCDIR),,--disable-dependency-tracking) \
	$$(QUIET) $$($$(PKG)_CONF_OPTS) \
	)
	endef
	endif
	endif

	$(2)_POST_PATCH_HOOKS += UPDATE_CONFIG_HOOK

	ifeq ($$($(2)_AUTORECONF),YES)

	# autopoint is provided by gettext
	ifeq ($$($(2)_AUTOPOINT),YES)
	$(2)_DEPENDENCIES += host-gettext
	$(2)_AUTORECONF_ENV += AUTOPOINT=$$(HOST_DIR)/bin/autopoint
	else
	$(2)_AUTORECONF_ENV += AUTOPOINT=/bin/true
	endif
	$(2)_PRE_CONFIGURE_HOOKS += AUTORECONF_HOOK
	# default values are not evaluated yet, so don't rely on this defaulting to YES
	ifneq ($$($(2)_LIBTOOL_PATCH),NO)
	$(2)_PRE_CONFIGURE_HOOKS += LIBTOOL_PATCH_HOOK
	endif
	$(2)_DEPENDENCIES += host-automake host-autoconf host-libtool

	else # ! AUTORECONF = YES

	# default values are not evaluated yet, so don't rely on this defaulting to YES
	ifneq ($$($(2)_LIBTOOL_PATCH),NO)
	$(2)_POST_PATCH_HOOKS += LIBTOOL_PATCH_HOOK
	endif

	endif

	# Append a configure hook if building for a powerpc64 (or powerpc64le) arch.
	# Must be added after other pre-configure hooks that might regenerate the
	# configure script and overwrite the changes made here.
	ifneq ($$(filter powerpc64%,$$(if $$(filter target,$(4)),$$(ARCH),$$(HOSTARCH))),)
	$(2)_PRE_CONFIGURE_HOOKS += CONFIGURE_FIX_POWERPC64_HOOK
	endif

	#
	# Build step. Only define it if not already defined by the package .mk
	# file.
	#
	ifndef $(2)_BUILD_CMDS
	ifeq ($(4),target)
	define $(2)_BUILD_CMDS
	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) -C $$($$(PKG)_SRCDIR)
	endef
	else
	define $(2)_BUILD_CMDS
	$$(HOST_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_MAKE_OPTS) -C $$($$(PKG)_SRCDIR)
	endef
	endif
	endif

	#
	# Host installation step. Only define it if not already defined by the
	# package .mk file.
	#
	ifndef $(2)_INSTALL_CMDS
	define $(2)_INSTALL_CMDS
	$$(HOST_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_INSTALL_OPTS) -C $$($$(PKG)_SRCDIR)
	endef
	endif

	#
	# Staging installation step. Only define it if not already defined by
	# the package .mk file.
	#
	ifndef $(2)_INSTALL_STAGING_CMDS
	define $(2)_INSTALL_STAGING_CMDS
	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_INSTALL_STAGING_OPTS) -C $$($$(PKG)_SRCDIR)
	endef
	endif

	#
	# Target installation step. Only define it if not already defined by
	# the package .mk file.
	#
	ifndef $(2)_INSTALL_TARGET_CMDS
	define $(2)_INSTALL_TARGET_CMDS
	$$(TARGET_MAKE_ENV) $$($$(PKG)_MAKE_ENV) $$($$(PKG)_MAKE) $$($$(PKG)_INSTALL_TARGET_OPTS) -C $$($$(PKG)_SRCDIR)
	endef
	endif

	# Call the generic package infrastructure to generate the necessary
	# make targets
	$(call inner-generic-package,$(1),$(2),$(3),$(4))

	endef

	################################################################################
	# autotools-package -- the target generator macro for autotools packages
	################################################################################

	autotools-package = $(call inner-autotools-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
	host-autotools-package = $(call inner-autotools-package,host-$(pkgname),$(call UPPERCASE,host-$(pkgname)),$(call UPPERCASE,$(pkgname)),host)