#!/usr/bin/make -f
# vim: nowrap ts=8

# Build locations
BUILD		:= $(CURDIR)/build
TMP		:= $(CURDIR)/debian/tmp
INSTALL_TMP	:= $(TMP)/install
TMP_DPKG	:= $(TMP)/dpkg
TMP_DPKG_DEV	:= $(TMP)/dpkg-dev
TMP_DPKG_DOC	:= $(TMP)/dpkg-doc
TMP_DSELECT 	:= $(TMP)/dselect

# We should really get this in a different way...
DEB_BUILD_GNU_TYPE	:= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE 2> /dev/null || true)
DEB_HOST_GNU_TYPE	:= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE 2> /dev/null || true)
arch			:= $(shell dpkg-architecture -qDEB_HOST_ARCH)

GENCONTROL	:= perl -I $(CURDIR)/scripts scripts/dpkg-gencontrol.pl -isp

ifneq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
  config_arg	:= --build=$(DEB_BUILD_GNU_TYPE) --host=$(DEB_HOST_GNU_TYPE)
else
  config_arg	:=
endif

BUILD-DIRS	:= $(BUILD) $(BUILD)-static

aclocal.m4: $(wildcard automake/*.m4)
	aclocal -I automake

# The following 2 rules should only be run, if their dependants have
# been modified.  For clean builds, this won't happen.  Only if the
# builder has modified these files after extraction.

configure: configure.in aclocal.m4
	autoconf

config.h.in: configure.in
	autoheader

config.guess config.sub: %: /usr/share/misc/%
	cp -a $< $@.new
	mv $@.new $@

# Setup the buildlocation
$(BUILD)/configure-stamp: configure config.h.in config.guess config.sub
	$(checkdir)
	install -d $(@D)
	cd $(@D) && LDFLAGS=$(LDFLAGS) $(shell echo "$(patsubst $(CURDIR)/%,%,$(@D))" | sed -e 's,^[^/][^/]*$$,..,;s,/[^/][^/]*,/..,g' )/configure \
		--prefix=/usr \
		--datadir=/usr/share \
		--mandir=/usr/share/man \
		--infodir=/usr/share/info \
		--sysconfdir=/etc \
		--sharedstatedir=/var/lib \
		--localstatedir=/var/lib \
		--with-admindir=/var/lib/dpkg \
		--with-zlib=static \
		--with-static-progs \
		$(config_arg)
	touch $@

clean:
	$(checkdir)
	rm -f debian/files debian/substvars
	rm -f debian/dpkg.substvars debian/dpkg-static.substvars
	rm -fr autom4te.cache
	rm -fr $(BUILD-DIRS) $(TMP)
	rm -f po/{cat-id-tbl.c,stamp-cat-id,*.gmo}
	rm -f stamp-build stamp-binary

build: stamp-build

stamp-build: $(BUILD)/configure-stamp
	$(MAKE) $(MFLAGS) -C $(BUILD)
#	touch $@

binary-static: binary-arch-static
binary: binary-arch binary-indep

stamp-binary-static: stamp-binary
stamp-binary: stamp-build
	$(checkdir)
	test "`id -u`" -eq 0
	rm -rf $(TMP)
	$(MAKE) $(MFLAGS) -C $(BUILD)$* \
		DESTDIR=$(INSTALL_TMP) \
		install
	find $(TMP) -type d | xargs chmod 755
	touch $@

binary-dpkg-static-most:	TMP_DPKG=$(TMP)/dpkg-static
binary-dpkg-static-most:	static=-static
binary-dpkg-static:		TMP_DPKG=$(TMP)/dpkg-static
binary-dpkg-static:		static=-static

binary-dpkg-most binary-dpkg-static-most: binary-dpkg%-most: stamp-binary%
	rm -rf $(TMP_DPKG)
	install -d -m 755 -o root -g root $(TMP_DPKG)
	chmod g-s $(TMP_DPKG)
	install -d -m 755 -o root -g root $(TMP_DPKG)/usr/share/doc/dpkg$(static)
	install -d -m 755 -o root -g root $(TMP_DPKG)/usr/lib/dpkg
	install -d -m 755 -o root -g root $(TMP_DPKG)/usr/bin
	install -d -m 755 -o root -g root $(TMP_DPKG)/sbin
	install -d -m 755 -o root -g root $(TMP_DPKG)/var/lib/dpkg
	-test -d $(INSTALL_TMP)/etc && cp -a $(INSTALL_TMP)/etc $(TMP_DPKG)/
	set -e ; for i in info alternatives parts updates ; do \
		cp -a $(INSTALL_TMP)/var/lib/dpkg/$$i $(TMP_DPKG)/var/lib/dpkg/ ; \
	done
	cp -a $(INSTALL_TMP)/usr/sbin $(TMP_DPKG)/usr/
	mv $(TMP_DPKG)/usr/sbin/start-stop-daemon $(TMP_DPKG)/sbin/
	cp -a $(INSTALL_TMP)/usr/lib/dpkg/mksplit $(TMP_DPKG)/usr/lib/dpkg/
	cp -a $(INSTALL_TMP)/usr/lib/dpkg/enoent $(TMP_DPKG)/usr/lib/dpkg/
	cp -a $(INSTALL_TMP)/usr/share/locale $(TMP_DPKG)/usr/share/
	cp -a $(INSTALL_TMP)/usr/share/dpkg $(TMP_DPKG)/usr/share/
	set -e ; for i in dpkg-split dpkg-query ; do \
		cp -a $(INSTALL_TMP)/usr/bin/$$i $(TMP_DPKG)/usr/bin/ ; \
	done
	set -e ; for i in dpkg dpkg-deb md5sum ; do \
		cp -a $(INSTALL_TMP)/usr/bin/$$i$(static) $(TMP_DPKG)/usr/bin/$$i ; \
	done
	set -e ; for i in ChangeLog THANKS TODO copyright; do \
		cp -a $(INSTALL_TMP)/usr/share/doc/dpkg/$$i $(TMP_DPKG)/usr/share/doc/dpkg$(static)/ ; \
	done
	cp -a debian/pseudo-tags $(TMP_DPKG)/usr/share/doc/dpkg$(static)/
	set -e ; for i in "" de fr ja sv ; do \
		install -d -m 755 -o root -g root $(TMP_DPKG)/usr/share/man/$$i/man1 ; \
		for m in md5sum.1 dpkg-deb.1 ; do \
			if [ -f $(INSTALL_TMP)/usr/share/man/$$i/man1/$$m ] ; then \
				cp -a $(INSTALL_TMP)/usr/share/man/$$i/man1/$$m $(TMP_DPKG)/usr/share/man/$$i/man1/$$m ; \
			fi ; \
		done ; \
		install -d -m 755 -o root -g root $(TMP_DPKG)/usr/share/man/$$i/man5 ; \
		for m in dpkg.cfg.5 ; do \
			if [ -f $(INSTALL_TMP)/usr/share/man/$$i/man5/$$m ] ; then \
				cp -a $(INSTALL_TMP)/usr/share/man/$$i/man5/$$m $(TMP_DPKG)/usr/share/man/$$i/man5/$$m ; \
			fi ; \
		done ; \
		install -d -m 755 -o root -g root $(TMP_DPKG)/usr/share/man/$$i/man8 ; \
		for m in dpkg.8 dpkg-query.8 dpkg-split.8 start-stop-daemon.8 \
		    	cleanup-info.8 dpkg-divert.8 dpkg-statoverride.8 \
			install-info.8 update-alternatives.8 ; do \
			if [ -f $(INSTALL_TMP)/usr/share/man/$$i/man8/$$m ] ; then \
				cp -a $(INSTALL_TMP)/usr/share/man/$$i/man8/$$m $(TMP_DPKG)/usr/share/man/$$i/man8/$$m ; \
			fi ; \
		done ; \
	done

# Now that dpkg has been installed, Debianize it
# Policy stuff
	find $(TMP_DPKG)/usr/share/man -type f | xargs gzip -9f
	strip --remove-section=.comment --remove-section=.note \
		--strip-unneeded $(TMP_DPKG)/usr/bin/* $(TMP_DPKG)/sbin/* \
		$(TMP_DPKG)/usr/lib/dpkg/enoent
	mv $(TMP_DPKG)/usr/share/doc/dpkg$(static)/ChangeLog \
		$(TMP_DPKG)/usr/share/doc/dpkg$(static)/changelog

	install -p -m 644 -o root -g root debian/changelog \
		$(TMP_DPKG)/usr/share/doc/dpkg$(static)/changelog.Debian
	rm -f $(TMP_DPKG)/usr/share/doc/dpkg$(static)/copyright
	gzip -9 $(TMP_DPKG)/usr/share/doc/dpkg$(static)/*
	install -p -m 644 -o root -g root debian/dpkg.cfg \
		$(TMP_DPKG)/usr/share/doc/dpkg$(static)/
	install -p -m 644 -o root -g root debian/copyright \
		$(TMP_DPKG)/usr/share/doc/dpkg$(static)/

# Final package creation
	install -d -m 755 -o root -g root $(TMP_DPKG)/DEBIAN
	install -p -m 644 -o root -g root debian/dpkg.conffiles $(TMP_DPKG)/DEBIAN/conffiles
	install -p -m 755 -o root -g root debian/dpkg.preinst $(TMP_DPKG)/DEBIAN/preinst
	install -p -m 755 -o root -g root debian/dpkg.prerm $(TMP_DPKG)/DEBIAN/prerm
	install -p -m 755 -o root -g root debian/dpkg.postinst $(TMP_DPKG)/DEBIAN/postinst
	install -p -m 755 -o root -g root debian/dpkg.postrm $(TMP_DPKG)/DEBIAN/postrm

	dpkg-shlibdeps -dPre-Depends -Tdebian/dpkg$(static).substvars \
		$(TMP_DPKG)/sbin/start-stop-daemon \
		`test -z "$(static)" && echo $(TMP_DPKG)/usr/bin/dpkg $(TMP_DPKG)/usr/bin/md5sum $(TMP_DPKG)/usr/bin/dpkg-deb`

binary-dpkg binary-dpkg-static: %: %-most
	$(GENCONTROL) -Tdebian/dpkg$(static).substvars -pdpkg$(static) -P$(TMP_DPKG)
	dpkg --build $(TMP_DPKG) ..

binary-dpkg-dev: stamp-binary
	rm -rf $(TMP_DPKG_DEV)
	install -d -m 755 -o root -g root $(TMP_DPKG_DEV)
	chmod g-s $(TMP_DPKG_DEV)
	install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/etc/dpkg
	install -p -m 644 -o root -g root debian/shlibs.default \
		$(TMP_DPKG_DEV)/etc/dpkg/
	install -p -m 644 -o root -g root debian/shlibs.override \
		$(TMP_DPKG_DEV)/etc/dpkg/
	install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/usr/lib/dpkg
	install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/usr/share
	install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/usr/bin
	mv $(INSTALL_TMP)/usr/lib/dpkg/parsechangelog $(TMP_DPKG_DEV)/usr/lib/dpkg/
	mv $(INSTALL_TMP)/usr/lib/dpkg/controllib.pl $(TMP_DPKG_DEV)/usr/lib/dpkg/
	set -e ; for i in dpkg-name dpkg-source dpkg-genchanges dpkg-gencontrol \
		dpkg-shlibdeps dpkg-buildpackage dpkg-distaddfile 822-date \
		dpkg-scanpackages dpkg-scansources dpkg-architecture \
		dpkg-parsechangelog dpkg-checkbuilddeps ; do \
		mv $(INSTALL_TMP)/usr/bin/$$i $(TMP_DPKG_DEV)/usr/bin/ ; \
	done
	set -e ; for i in "" de fr ja sv ; do \
		install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/usr/share/man/$$i/man1 ; \
		for m in dpkg-name.1 dpkg-source.1 822-date.1 dpkg-architecture.1 \
			dpkg-buildpackage.1 dpkg-distaddfile.1 dpkg-genchanges.1 \
			dpkg-gencontrol.1 dpkg-parsechangelog.1 dpkg-shlibdeps.1 \
			dpkg-checkbuilddeps.1 ; do \
			if [ -e $(INSTALL_TMP)/usr/share/man/$$i/man1/$$m ] ; then \
				mv $(INSTALL_TMP)/usr/share/man/$$i/man1/$$m $(TMP_DPKG_DEV)/usr/share/man/$$i/man1/$$m ; \
			fi ; \
		done ; \
		install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/usr/share/man/$$i/man5 ; \
		for m in deb.5 deb-control.5 deb-old.5 ; do \
			if [ -e $(INSTALL_TMP)/usr/share/man/$$i/man5/$$m ] ; then \
				mv $(INSTALL_TMP)/usr/share/man/$$i/man5/$$m $(TMP_DPKG_DEV)/usr/share/man/$$i/man5/$$m ; \
			fi ; \
		done ; \
		install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/usr/share/man/$$i/man8 ; \
		for m in dpkg-scanpackages.8 dpkg-scansources.8 ; do \
			if [ -e $(INSTALL_TMP)/usr/share/man/$$i/man8/$$m ] ; then \
				mv $(INSTALL_TMP)/usr/share/man/$$i/man8/$$m $(TMP_DPKG_DEV)/usr/share/man/$$i/man8/$$m ; \
			fi ; \
		done ; \
	done
# Now that dpkg-dev has been installed, Debianize it
# Policy stuff
	find $(TMP_DPKG_DEV)/usr/share/man -type f | xargs gzip -9f
	install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/usr/share/doc
	ln -s dpkg $(TMP_DPKG_DEV)/usr/share/doc/dpkg-dev

# Final package creation
	install -d -m 755 -o root -g root $(TMP_DPKG_DEV)/DEBIAN
	install -p -m 644 -o root -g root debian/dpkg-dev.conffiles $(TMP_DPKG_DEV)/DEBIAN/conffiles

	$(GENCONTROL) -Tdebian/dpkg-dev.substvars -pdpkg-dev -P$(TMP_DPKG_DEV)
	dpkg --build $(TMP_DPKG_DEV) ..

binary-dselect: stamp-binary
	rm -rf $(TMP_DSELECT)
	install -d -m 755 -o root -g root $(TMP_DSELECT)
	chmod g-s $(TMP_DSELECT)

	install -d -m 755 -o root -g root $(TMP_DSELECT)/usr/bin
	mv $(INSTALL_TMP)/usr/bin/dselect $(TMP_DSELECT)/usr/bin/

	install -d -m 755 -o root -g root $(TMP_DSELECT)/usr/lib/dpkg
	mv $(INSTALL_TMP)/usr/lib/dpkg/methods $(TMP_DSELECT)/usr/lib/dpkg/

	install -d -m 755 -o root -g root $(TMP_DSELECT)/var/lib/dpkg
	mv $(INSTALL_TMP)/var/lib/dpkg/methods $(TMP_DSELECT)/var/lib/dpkg/

	set -e ; for i in "" de fr ja sv ; do \
		install -d -m 755 -o root -g root $(TMP_DSELECT)/usr/share/man/$$i/man5 ; \
		for m in dselect.cfg.5 ; do \
			if [ -f $(INSTALL_TMP)/usr/share/man/$$i/man5/$$m ] ; then \
				cp -a $(INSTALL_TMP)/usr/share/man/$$i/man5/$$m $(TMP_DSELECT)/usr/share/man/$$i/man5/$$m ; \
			fi ; \
		done ; \
		install -d -m 755 -o root -g root $(TMP_DSELECT)/usr/share/man/$$i/man8 ; \
		for m in dselect.8 ; do \
			if [ -f $(INSTALL_TMP)/usr/share/man/$$i/man8/$$m ] ; then \
				cp -a $(INSTALL_TMP)/usr/share/man/$$i/man8/$$m $(TMP_DSELECT)/usr/share/man/$$i/man8/$$m ; \
			fi ; \
		done ; \
	done

	install -d -m 755 -o root -g root $(TMP_DSELECT)/etc/dpkg
	install -p -m 644 -o root -g root debian/dselect.cfg \
		$(TMP_DSELECT)/etc/dpkg/

# Now do the usual Debian stuff
	find $(TMP_DSELECT)/usr/share/man -type f | xargs gzip -9f
	install -d -m 755 -o root -g root $(TMP_DSELECT)/usr/share/doc
	ln -s dpkg $(TMP_DSELECT)/usr/share/doc/dselect
	strip --remove-section=.comment --remove-section=.note \
		--strip-unneeded $(TMP_DSELECT)/usr/bin/* 

# Final package creation
	install -d -m 755 -o root -g root $(TMP_DSELECT)/DEBIAN
	install -p -m 644 -o root -g root debian/dselect.conffiles $(TMP_DSELECT)/DEBIAN/conffiles

	dpkg-shlibdeps -Tdebian/dselect.substvars \
		$(TMP_DSELECT)/usr/bin/dselect 
	$(GENCONTROL) -Tdebian/dselect.substvars -pdselect -P$(TMP_DSELECT)
	dpkg --build $(TMP_DSELECT) ..

binary-dpkg-doc: stamp-binary
	rm -rf $(TMP_DPKG_DOC)
	install -d -m 755 -o root -g root $(TMP_DPKG_DOC)
	chmod g-s $(TMP_DPKG_DOC)
	install -d -m 755 -o root -g root $(TMP_DPKG_DOC)/usr/share/doc/dpkg
	mv $(INSTALL_TMP)/usr/share/doc/dpkg/internals $(TMP_DPKG_DOC)/usr/share/doc/dpkg/
	mv $(INSTALL_TMP)/usr/share/doc/dpkg/ChangeLog.manuals \
		$(TMP_DPKG_DOC)/usr/share/doc/dpkg/changelog.manuals

# Now that dpkg-doc has been installed, Debianize it
# Policy stuff
	gzip -9f $(TMP_DPKG_DOC)/usr/share/doc/dpkg/[!i]*
	ln -s dpkg $(TMP_DPKG_DOC)/usr/share/doc/dpkg-doc

# Register documentation with doc-base
	install -d -m 755 -o root -g root $(TMP_DPKG_DOC)/usr/share/doc-base
	install -p -m 644 -o root -g root debian/dpkg-doc.doc-base \
		$(TMP_DPKG_DOC)/usr/share/doc-base/dpkg-doc
	
# Final package creation
	install -d -m 755 -o root -g root $(TMP_DPKG_DOC)/DEBIAN
	install -p -m 755 -o root -g root debian/dpkg-doc.prerm $(TMP_DPKG_DOC)/DEBIAN/prerm
	install -p -m 755 -o root -g root debian/dpkg-doc.postinst $(TMP_DPKG_DOC)/DEBIAN/postinst

	$(GENCONTROL) -Tdebian/dpkg-doc.substvars -pdpkg-doc -P$(TMP_DPKG_DOC)
	dpkg --build $(TMP_DPKG_DOC) ..

binary-arch-static: binary-dpkg-static
binary-arch: binary-dpkg binary-dpkg-static-most binary-dselect

binary-indep: binary-dpkg-dev binary-dpkg-doc

define checkdir
	test -f include/dpkg.h.in
endef

.PHONY: clean build binary binary-arch binary-indep binary-dpkg binary-dpkg-dev
.PHONY: binary-dpkg-doc binary-nondebbin