openwrtv4/openwrt/package/rules.mk

ifneq ($(DUMP),)
  all: dumpinfo
else
  all: compile
endif

define Build/DefaultTargets
  ifeq ($(DUMP),)
    ifeq ($$(shell $(SCRIPT_DIR)/timestamp.pl -p $(PKG_BUILD_DIR) . | tee /tmp/xy1),.)
      $(PKG_BUILD_DIR)/.prepared: package-clean
    endif

    ifneq ($$(shell $(SCRIPT_DIR)/timestamp.pl -p -x ipkg $(IPKG_$(1)) $(PKG_BUILD_DIR) | tee /tmp/xy2),$(IPKG_$(1)))
      $(PKG_BUILD_DIR)/.built: package-rebuild
    endif
  endif

  $(PKG_BUILD_DIR)/.prepared: $(DL_DIR)/$(PKG_SOURCE)
	@-rm -rf $(PKG_BUILD_DIR)
	@mkdir -p $(PKG_BUILD_DIR)
	$(call Build/Prepare)
	touch $$@

  $(PKG_BUILD_DIR)/.configured: $(PKG_BUILD_DIR)/.prepared
	$(call Build/Configure)
	touch $$@

  $(PKG_BUILD_DIR)/.built: $(PKG_BUILD_DIR)/.configured
	$(call Build/Compile)
	touch $$@
    
  $(PKG_BUILD_DIR)/.dev-installed: $(PKG_BUILD_DIR)/.built
	$(call Build/InstallDev)
	touch $$@
    
  package-clean: FORCE
	$(call Build/Clean)
	$(call Build/UninstallDev)

  package-rebuild: FORCE
	@-rm $(PKG_BUILD_DIR)/.built

  define Build/DefaultTargets
  endef
endef

define Package/Default
  CONFIGFILE:=
  SECTION:=opt
  CATEGORY:=Extra packages
  DEPENDS:=
  NEEDS:=
  MAINTAINER:=OpenWrt Developers Team <openwrt-devel@openwrt.org>
  SOURCE:=$(patsubst $(TOPDIR)/%,%,${shell pwd})
  VERSION:=$(PKG_VERSION)-$(PKG_RELEASE)
  PKGARCH:=$(ARCH)
  PRIORITY:=optional
  DEFAULT:=
  MENU:=
  TITLE:=
  DESCRIPTION:=
endef

define BuildPackage
  $(eval $(call Package/Default))
  $(eval $(call Package/$(1)))

  $(foreach FIELD, TITLE CATEGORY PRIORITY VERSION,
    ifeq ($($(FIELD)),)
      $$(error Package/$(1) is missing the $(FIELD) field)
    endif
  )

  ifeq ($(PKGARCH),)
    PKGARCH:=$(ARCH)
  endif

  ifeq ($(DESCRIPTION),)
    $(eval DESCRIPTION:=$(TITLE))
  endif

  IPKG_$(1):=$(PACKAGE_DIR)/$(1)_$(VERSION)_$(PKGARCH).ipk
  IDIR_$(1):=$(PKG_BUILD_DIR)/ipkg/$(1)
  INFO_$(1):=$(IPKG_STATE_DIR)/info/$(1).list

  ifeq ($(CONFIG_PACKAGE_$(1)),y)
    install-targets: $$(INFO_$(1))
  endif

  ifneq ($(CONFIG_PACKAGE_$(1))$(DEVELOPER),)
    compile-targets: $$(IPKG_$(1))
  endif

  IDEPEND_$(1):=$$(strip $$(DEPENDS))
  INEED_$(1):=$$(strip $$(NEEDS))

  DUMPINFO += \
	echo "Package: $(1)"; 

  ifneq ($(MENU),)
    DUMPINFO += \
	echo "Menu: $(MENU)";
  endif

  ifneq ($(DEFAULT),)
    DUMPINFO += \
	echo "Default: $(DEFAULT)";
  endif

  DUMPINFO += \
	echo "Version: $(VERSION)"; \
	echo "Depends: $$(IDEPEND_$(1))"; \
	echo "Needs: $$(INEED_$(1))"; \
	echo "Category: $(CATEGORY)"; \
	echo "Title: $(TITLE)"; \
	echo "Description: $(DESCRIPTION)" | sed -e 's,\\,\n,g';

  ifneq ($(URL),)
    DUMPINFO += \
	echo; \
	echo "$(URL)";
  endif

  DUMPINFO += \
	echo "@@";

  ifneq ($(CONFIG),)
    DUMPINFO += \
	echo "Config: $(CONFIG)" | sed -e 's,\\,\n,g'; \
	echo "@@";
  endif

  $$(IDIR_$(1))/CONTROL/control: $(PKG_BUILD_DIR)/.prepared
	mkdir -p $$(IDIR_$(1))/CONTROL
	echo "Package: $(1)" > $$(IDIR_$(1))/CONTROL/control
	echo "Version: $(VERSION)" >> $$(IDIR_$(1))/CONTROL/control
	#FIXME: there should be a better way to do it
	D="$$(IDEPEND_$(1))"; D="$$$${D}$$$${D:+, }$$(INEED_$(1))"; echo "Depends: $$$${D}" >> $$(IDIR_$(1))/CONTROL/control
	echo "Source: $(SOURCE)" >> $$(IDIR_$(1))/CONTROL/control
	echo "Section: $(SECTION)" >> $$(IDIR_$(1))/CONTROL/control
	echo "Priority: $(PRIORITY)" >> $$(IDIR_$(1))/CONTROL/control
	echo "Maintainer: $(MAINTAINER)" >> $$(IDIR_$(1))/CONTROL/control
	echo "Architecture: $(PKGARCH)" >> $$(IDIR_$(1))/CONTROL/control
	echo "Description: $(DESCRIPTION)" | sed -e 's,\\,\n ,g' >> $$(IDIR_$(1))/CONTROL/control
	chmod 644 $$(IDIR_$(1))/CONTROL/control
	for file in conffiles preinst postinst prerm postrm; do \
		[ -f ./ipkg/$(1).$$$$file ] && cp ./ipkg/$(1).$$$$file $$(IDIR_$(1))/CONTROL/$$$$file || true; \
	done

  $$(IPKG_$(1)): $$(IDIR_$(1))/CONTROL/control $(PKG_BUILD_DIR)/.built
	$(call Package/$(1)/install,$$(IDIR_$(1)))
	mkdir -p $(PACKAGE_DIR)
	$(RSTRIP) $$(IDIR_$(1))
	$(IPKG_BUILD) $$(IDIR_$(1)) $(PACKAGE_DIR)

  $$(INFO_$(1)): $$(IPKG_$(1))
	$(IPKG) install $$(IPKG_$(1))

  compile-targets: $(PKG_BUILD_DIR)/.dev-installed

  $(1)-clean:
	rm -f $(PACKAGE_DIR)/$(1)_*

  clean: $(1)-clean

  $$(eval $$(call Build/DefaultTargets,$(1)))

endef

ifneq ($(strip $(PKG_SOURCE)),)
  $(DL_DIR)/$(PKG_SOURCE):
	$(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(PKG_SOURCE)" "$(PKG_MD5SUM)" $(PKG_SOURCE_URL)
endif

ifneq ($(strip $(PKG_CAT)),)
  define Build/Prepare/Default
	@if [ "$(PKG_CAT)" = "unzip" ]; then \
		unzip -d $(PKG_BUILD_DIR) $(DL_DIR)/$(PKG_SOURCE) ; \
	else \
		$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | tar -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS) - ; \
	fi						  
	@if [ -d ./patches ]; then \
		$(PATCH) $(PKG_BUILD_DIR) ./patches ; \
	fi
  endef
endif

define Build/Prepare
  $(call Build/Prepare/Default)
endef

define Build/Configure/Default
	@(cd $(PKG_BUILD_DIR); \
	[ -x configure ] && \
		$(TARGET_CONFIGURE_OPTS) \
		CFLAGS="$(TARGET_CFLAGS)" \
		CPPFLAGS="-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include" \
		LDFLAGS="-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib" \
		./configure \
		--target=$(GNU_TARGET_NAME) \
		--host=$(GNU_TARGET_NAME) \
		--build=$(GNU_HOST_NAME) \
		--program-prefix="" \
		--program-suffix="" \
		--prefix=/usr \
		--exec-prefix=/usr \
		--bindir=/usr/bin \
		--sbindir=/usr/sbin \
		--libexecdir=/usr/lib \
		--sysconfdir=/etc \
		--datadir=/usr/share \
		--localstatedir=/var \
		--mandir=/usr/man \
		--infodir=/usr/info \
		$(DISABLE_NLS) \
		$(1); \
		true; \
	)
endef

define Build/Configure
  $(call Build/Configure/Default,)
endef

define Build/Compile/Default
	$(MAKE) -C $(PKG_BUILD_DIR) \
		CC=$(TARGET_CC) \
		CROSS="$(TARGET_CROSS)" \
		PREFIX="$$(IDIR_$(1))" \
		EXTRA_CFLAGS="$(TARGET_CFLAGS)" \
		ARCH="$(ARCH)" \
		DESTDIR="$$(IDIR_$(1))" \
		$(1);
endef

define Build/Compile
  $(call Build/Compile/Default,)
endef

define Build/InstallDev
endef

define Build/Clean
	$(MAKE) clean
endef

define Build/UninstallDev
endef

ifneq ($(DUMP),)
  dumpinfo: FORCE
	@$(DUMPINFO)
else
		
  $(PACKAGE_DIR):
	mkdir -p $@

  source: $(DL_DIR)/$(PKG_SOURCE)
  prepare: $(PKG_BUILD_DIR)/.prepared
  configure: $(PKG_BUILD_DIR)/.configured

  compile-targets:
  compile: compile-targets

  install-targets:
  install: install-targets

  clean-targets:
  clean: FORCE
	@$(MAKE) clean-targets
	rm -rf $(PKG_BUILD_DIR)
endif