## ############################################################################
## common targets:
## make apache-fe (worker, mod_proxy, mod_rewrite)
## make apache-be (prefork, mod_rpaf, php4)
##
## build-requirements:
## build-essential, bzip2
## libz-dev, libxml2-dev, libpng-dev, libjpeg-dev, libmysqlclient-dev

DESTDIR=/opt

MAKE_FLAGS=-j2

## ############################################################################

WGET := /usr/bin/wget --passive-ftp -nd

_SRCBASE=$(shell /bin/pwd)
_DOWNLOADS=$(_SRCBASE)/download
_SOURCES=$(_SRCBASE)/source

## ############################################################################

VERSION_APACHE=2.2.10
PACKAGE_APACHE=httpd-$(VERSION_APACHE).tar.bz2
DOWNLOAD_APACHE=http://apache.speedbone.de/httpd/$(PACKAGE_APACHE)
SOURCE_APACHE=$(_SOURCES)/httpd-$(VERSION_APACHE)

VERSION_RPAF=0.5
PACKAGE_RPAF=mod_rpaf-$(VERSION_RPAF).tar.gz
DOWNLOAD_RPAF=http://stderr.net/apache/rpaf/download/$(PACKAGE_RPAF)
SOURCE_RPAF=$(_SOURCES)/mod_rpaf-$(VERSION_RPAF)

VERSION_PHP=5.2.6
PACKAGE_PHP=php-$(VERSION_PHP).tar.bz2
DOWNLOAD_PHP=http://de3.php.net/get/$(PACKAGE_PHP)/from/this/mirror
SOURCE_PHP=$(_SOURCES)/php-$(VERSION_PHP)

VERSION_EACCELERATOR=0.9.5.3
PACKAGE_EACCELERATOR=eaccelerator-$(VERSION_EACCELERATOR).tar.bz2
DOWNLOAD_EACCELERATOR=http://bart.eaccelerator.net/source/$(VERSION_EACCELERATOR)/$(PACKAGE_EACCELERATOR)
SOURCE_EACCELERATOR=$(_SOURCES)/eaccelerator-$(VERSION_EACCELERATOR)

## ############################################################################

all: apache-fe apache-be

fetch: $(_DOWNLOADS)/$(PACKAGE_APACHE) \
    $(_DOWNLOADS)/$(PACKAGE_RPAF) \
    $(_DOWNLOADS)/$(PACKAGE_PHP) \
    $(_DOWNLOADS)/$(PACKAGE_EACCELERATOR)

$(_DOWNLOADS)/$(PACKAGE_APACHE):
	$(WGET) -P $(_DOWNLOADS) $(DOWNLOAD_APACHE)

$(SOURCE_APACHE)/.unpacked: $(_DOWNLOADS)/$(PACKAGE_APACHE)
	mkdir -p $(SOURCE_APACHE)
	tar -C $(_SOURCES) -xjf $(_DOWNLOADS)/$(PACKAGE_APACHE)
	cat apache-layouts >> $(SOURCE_APACHE)/config.layout
	touch $@

$(_DOWNLOADS)/$(PACKAGE_RPAF):
	$(WGET) -P $(_DOWNLOADS) $(DOWNLOAD_RPAF)

$(SOURCE_RPAF)/.unpacked: $(_DOWNLOADS)/$(PACKAGE_RPAF)
	mkdir -p $(SOURCE_RPAF)
	tar -C $(_SOURCES) -xzf $(_DOWNLOADS)/$(PACKAGE_RPAF)
	touch $@

$(_DOWNLOADS)/$(PACKAGE_PHP):
	$(WGET) -P $(_DOWNLOADS) $(DOWNLOAD_PHP)

$(SOURCE_PHP)/.unpacked: $(_DOWNLOADS)/$(PACKAGE_PHP)
	mkdir -p $(SOURCE_PHP)
	tar -C $(_SOURCES) -xjf $(_DOWNLOADS)/$(PACKAGE_PHP)
	touch $@

$(_DOWNLOADS)/$(PACKAGE_EACCELERATOR):
	$(WGET) -P $(_DOWNLOADS) $(DOWNLOAD_EACCELERATOR)

$(SOURCE_EACCELERATOR)/.unpacked: $(_DOWNLOADS)/$(PACKAGE_EACCELERATOR)
	mkdir -p $(SOURCE_EACCELERATOR)
	tar -C $(_SOURCES) -xjf $(_DOWNLOADS)/$(PACKAGE_EACCELERATOR)
	touch $@

## ############################################################################

_BUILD_APACHE_FRONTEND=$(_SOURCES)/apache-frontend

apache-fe: $(_BUILD_APACHE_FRONTEND)/.installed

$(_BUILD_APACHE_FRONTEND)/.configured: $(SOURCE_APACHE)/.unpacked
	mkdir -p $(_BUILD_APACHE_FRONTEND)
	( cd $(_BUILD_APACHE_FRONTEND); \
		$(SOURCE_APACHE)/configure \
		--enable-layout=Frontend \
		--with-mpm=worker \
		--enable-proxy \
		--enable-proxy-http \
		--enable-proxy-balancer \
		--enable-rewrite \
	);
	touch $@

$(_BUILD_APACHE_FRONTEND)/.compiled: $(_BUILD_APACHE_FRONTEND)/.configured
	make $(MAKE_FLAGS) -C $(_BUILD_APACHE_FRONTEND) all
	touch $@

$(_BUILD_APACHE_FRONTEND)/.installed: $(_BUILD_APACHE_FRONTEND)/.compiled
	make -C $(_BUILD_APACHE_FRONTEND) install
	rm -rf /etc/apache-fe/original
	touch $@

apache-fe-clean:
	rm -rf $(_BUILD_APACHE_FRONTEND)

## ############################################################################

_BUILD_APACHE_BACKEND=$(_SOURCES)/apache-backend
_BUILD_APACHE_BACKEND_PHP=$(_SOURCES)/apache-backend-php

apache-be: $(_BUILD_APACHE_BACKEND)/.installed \
	    $(SOURCE_RPAF)/.installed \
	    $(_BUILD_APACHE_BACKEND_PHP)/.installed \
	    $(SOURCE_EACCELERATOR)/.installed

$(_BUILD_APACHE_BACKEND)/.configured: $(SOURCE_APACHE)/.unpacked
	mkdir -p $(_BUILD_APACHE_BACKEND)
	( cd $(_BUILD_APACHE_BACKEND); \
		$(SOURCE_APACHE)/configure \
		--enable-layout=Backend \
		--with-mpm=prefork \
		--enable-so \
	);
	touch $@

$(_BUILD_APACHE_BACKEND)/.compiled: $(_BUILD_APACHE_BACKEND)/.configured
	make $(MAKE_FLAGS) -C $(_BUILD_APACHE_BACKEND) all
	touch $@

$(_BUILD_APACHE_BACKEND)/.installed: $(_BUILD_APACHE_BACKEND)/.compiled
	make -C $(_BUILD_APACHE_BACKEND) install
	rm -rf /etc/apache-be/original
	touch $@

$(SOURCE_RPAF)/.compiled: $(SOURCE_RPAF)/.unpacked $(_BUILD_APACHE_BACKEND)/.installed
	make -C $(SOURCE_RPAF) APXS=$(DESTDIR)/apache-backend/bin/apxs rpaf-2.0
	touch $@

$(SOURCE_RPAF)/.installed: $(SOURCE_RPAF)/.compiled
	make -C $(SOURCE_RPAF) APXS=$(DESTDIR)/apache-backend/bin/apxs install-2.0
	touch $@

$(_BUILD_APACHE_BACKEND_PHP)/.configured: $(SOURCE_PHP)/.unpacked $(_BUILD_APACHE_BACKEND)/.installed
	mkdir -p $(_BUILD_APACHE_BACKEND_PHP)
	( cd $(_BUILD_APACHE_BACKEND_PHP); \
		$(SOURCE_PHP)/configure \
		--prefix=$(DESTDIR)/apache-backend-php \
		--with-apxs2=$(DESTDIR)/apache-backend/bin/apxs \
		--with-config-file-path=/etc/apache-be \
		--disable-cgi \
		--with-layout=GNU \
		--disable-rpath \
		--disable-ipv6 \
		--disable-static \
		--enable-sockets \
		--enable-inline-optimization \
		--with-zlib \
		--with-regex=system \
		--with-gd \
		--with-png-dir=/usr \
		--with-jpeg-dir=/usr \
		--with-mysql=/usr \
	);
	touch $@

$(_BUILD_APACHE_BACKEND_PHP)/.compiled: $(_BUILD_APACHE_BACKEND_PHP)/.configured
	make $(MAKE_FLAGS) -C $(_BUILD_APACHE_BACKEND_PHP) all
	touch $@

$(_BUILD_APACHE_BACKEND_PHP)/.installed: $(_BUILD_APACHE_BACKEND_PHP)/.compiled
	make -C $(_BUILD_APACHE_BACKEND_PHP) install
	# copy default php.ini
	cp $(SOURCE_PHP)/php.ini-dist /etc/apache-be/php.ini
	# set extension-dir
	sed -i /etc/apache-be/php.ini \
		-e 's:^extension_dir.*$$:extension_dir = $(shell $(DESTDIR)/apache-backend-php/bin/php-config --extension-dir):'
	touch $@

$(SOURCE_EACCELERATOR)/.configured:  $(SOURCE_EACCELERATOR)/.unpacked $(_BUILD_APACHE_BACKEND_PHP)/.installed
	( cd $(SOURCE_EACCELERATOR); \
		$(DESTDIR)/apache-backend-php/bin/phpize; \
		./configure \
	        --with-eaccelerator=shared \
	        --with-php-config=$(DESTDIR)/apache-backend-php/bin/php-config \
	);
	touch $@

$(SOURCE_EACCELERATOR)/.compiled:  $(SOURCE_EACCELERATOR)/.configured
	make $(MAKE_FLAGS) -C $(SOURCE_EACCELERATOR) all
	touch $@

$(SOURCE_EACCELERATOR)/.installed:  $(SOURCE_EACCELERATOR)/.compiled
	make -C $(SOURCE_EACCELERATOR) install
	# enable eaccelerator
	sed $(SOURCE_EACCELERATOR)/eaccelerator.ini \
		-e 's:^zend_extension:;zend_extension:' \
		-e 's:;extension="eaccelerator.so":extension="eaccelerator.so":' \
		-e 's:^eaccelerator.log_file.*$$:eaccelerator.log_file = "/var/log/apache-be/eaccelerator.log":' \
		>> /etc/apache-be/php.ini
	touch $@

apache-be-clean:
	rm -rf $(_BUILD_APACHE_BACKEND)
	rm -rf $(SOURCE_RPAF)
	rm -rf $(_BUILD_APACHE_BACKEND_PHP)
	rm -rf $(SOURCE_EACCELERATOR)

## ############################################################################