#!/usr/bin/make -f

include /usr/share/dpkg/architecture.mk
include /usr/share/dpkg/buildflags.mk

%:
	dh $@

export DH_VERBOSE = 1

CC = gcc
VERSION := $(shell dpkg-parsechangelog | perl -ne '/Version:\s+(.+)-[^-]+/ && print $1')

# We must have this libraries so packages can be compiled,
# but if we just use filters provided by illumos gate, it causes
# some rare FTBFS with GNU ld. We can't use symlink (e. g. libpthread -> libc),
# because in this case libc can go before libgcc_s, and some other packages
# will crash in runtime. So we make a dummy library.

libs_filters := \
libaio \
libdoor \
libintl \
libpthread \
librt \
libsendfile \
libthread \
libxnet \

fake_libs := \
$(libs_filters) \
libposix4 \
libdl \

# These lists are used in packing orig tarball
# and in building binaries. Anything that need a
# special way of building is extracted in a special way too,
# for example ld and ldd.

# XXX order is important for building:
# usr/src/lib/* :
libs := \
common \
libavl \
libc \
libc_db \
libgen \
libcrypt \
libmd \
libmp \
libnsl \
libresolv \
libresolv2 \
librpcsvc \
libsecdb \
libsocket \
crypt_modules \
$(libs_filters)

# usr/src/lib/nsswitch/* :
nsswitch := \
files \
user \
nis \
dns \
compat \

# XXX order is important for building
# usr/src/cmd/sgs/* :
sgs := \
libconv \
libdl \
liblddbg \
libelf \
libld \
librtld \
librtld_db \
rtld \
lddstub \
crle \


# usr/src/cmd/* for libc functionality:
cmd := \
utmp_update \
utmpd \
zic \
getconf \
locale \
localedef \
zdump \
rpcinfo \
rpcgen \
getent \
gencat \

man1 := $(filter-out utmp_update,$(cmd))
man1 += $(filter-out lib% lddstub rtld, $(sgs) ld ldd)

# usr/src/common:
common := \
atomic \
avl \
crypto \
dtrace \
elfcap \
sgsrtcid \
unicode \
util \
xattr \

BUILD = build-tree
ROOT = $(BUILD)/root
ILLUMOS_GATE = illumos-gate

$(ILLUMOS_GATE):
	dh_illumos_gate --checkout --destdir=$(ILLUMOS_GATE)

.PHONY: create-orig
create-orig: $(ILLUMOS_GATE)
	dh_illumos_gate --create-orig --build \
		$(ILLUMOS_GATE)/usr/src/cmd/netfiles \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/Makefile* \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/include \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/ld \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/ldd \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/messages \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/packages/common/SUNWonld-README \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/packages/common/readme_revision \
		$(ILLUMOS_GATE)/usr/src/cmd/sgs/tools \
		$(ILLUMOS_GATE)/usr/src/head \
		$(ILLUMOS_GATE)/usr/src/lib/nsswitch/Makefile* \
		$(ILLUMOS_GATE)/usr/src/man/man2/\*.2 \
		$(ILLUMOS_GATE)/usr/src/man/man3/\*.3 \
		$(ILLUMOS_GATE)/usr/src/man/man3c/\*.3c \
		$(ILLUMOS_GATE)/usr/src/man/man4/crypt.conf.4 \
		$(ILLUMOS_GATE)/usr/src/man/man5/crypt_\*.5 \
		$(ILLUMOS_GATE)/usr/src/uts/\*/\*/krtld \
		$(ILLUMOS_GATE)/usr/src/uts/\*/krtld \
		$(ILLUMOS_GATE)/usr/src/uts/common/sys/avl*.h \
		$(cmd:%=$(ILLUMOS_GATE)/usr/src/cmd/%) \
		$(common:%=$(ILLUMOS_GATE)/usr/src/common/%) \
		$(libs:%=$(ILLUMOS_GATE)/usr/src/lib/%) \
		$(man1:%=$(ILLUMOS_GATE)/usr/src/man/man1\*/%.\*) \
		$(nsswitch:%=$(ILLUMOS_GATE)/usr/src/lib/nsswitch/%) \
		$(sgs:%=$(ILLUMOS_GATE)/usr/src/cmd/sgs/%) \

test-orig: create-orig
	./debian/rules clean
	rm -rf usr .pc
	tar xf ../libc_$(VERSION).orig.tar.xz --strip=1
	quilt push -a
	./debian/rules build
	fakeroot ./debian/rules binary

# libs having "install_h" target to install headers first:
libs_headers := \
libc \
libmd \
libsocket \
libnsl \
libgen \

override_dh_auto_configure:
	dh_illumos_gate --configure --destdir=$(BUILD) --root=$(ROOT)
	echo 'export DEB_CRYPT_MODULE_DIR_32="$$DEB_LIBDIR_32/security"' >> $(BUILD)/usr/env.sh
	echo 'export DEB_CRYPT_MODULE_DIR_64="$$DEB_LIBDIR_64/security"' >> $(BUILD)/usr/env.sh
	find $(BUILD)/usr/src/head -name \*.x -exec ./debian/fix.x.pl {} \;

override_dh_auto_build:
	. $(BUILD)/usr/env.sh; mkdir -p \
		$(ROOT)/$$DEB_CRYPT_MODULE_DIR_32 \
		$(ROOT)/$$DEB_CRYPT_MODULE_DIR_64 \
		$(ROOT)/$$DEB_LIBDIR_32 \
		$(ROOT)/$$DEB_LIBDIR_64 \
		$(ROOT)/$$DEB_USRLIBDIR_32 \
		$(ROOT)/$$DEB_USRLIBDIR_64 \
		$(ROOT)/etc/default \
		$(ROOT)/usr/include/sys \
		$(ROOT)/usr/bin \
		$(ROOT)/usr/sbin
	# We are changing soname, but keep links for build time.
	# These links also will go into libsunXXX-dev packages.
	# Watch out: libc build-conflicts with other libelf-dev and libavl-dev
	# implementations, and libsunXXX-dev will do too.
	. $(BUILD)/usr/env.sh; \
	ln -svf $$ROOT/$$DEB_LIBDIR_32/libsunelf.so.1 \
		$$ROOT/$$DEB_USRLIBDIR_32/libelf.so && \
	ln -svf $$ROOT/$$DEB_LIBDIR_64/libsunelf.so.1 \
		$$ROOT/$$DEB_USRLIBDIR_64/libelf.so && \
	ln -svf $$ROOT/$$DEB_LIBDIR_32/libsunavl.so.1 \
		$$ROOT/$$DEB_USRLIBDIR_32/libavl.so && \
	ln -svf $$ROOT/$$DEB_LIBDIR_64/libsunavl.so.1 \
		$$ROOT/$$DEB_USRLIBDIR_64/libavl.so

	# This is for ld and other to find the right library:
	. $(BUILD)/usr/env.sh; \
	ln -svf $$ROOT/$$DEB_LIBDIR_32/libld.so.4 \
		$$ROOT/$$DEB_USRLIBDIR_32/libld.so && \
	ln -svf $$ROOT/$$DEB_LIBDIR_64/libld.so.4 \
		$$ROOT/$$DEB_USRLIBDIR_64/libld.so && \
	ln -svf $$ROOT/$$DEB_LIBDIR_32/liblddbg.so.4 \
		$$ROOT/$$DEB_USRLIBDIR_32/liblddbg.so && \
	ln -svf $$ROOT/$$DEB_LIBDIR_64/liblddbg.so.4 \
		$$ROOT/$$DEB_USRLIBDIR_64/liblddbg.so

	# install headers
	dh_illumos_make $(make) $(BUILD)/usr/src/head -t install_h
	dh_illumos_make $(make) $(libs_headers:%=$(BUILD)/usr/src/lib/%) -t install_h
	cp -vf $(BUILD)/usr/src/uts/common/sys/avl*.h $(ROOT)/usr/include/sys/
	cp -vrf debian/compat_headers/* $(ROOT)/usr/include/

	# build libs
	# libutil is brought by our patch, it's not a part of the gate
	dh_illumos_make $(patsubst %,$(BUILD)/usr/src/lib/%,$(libs) libutil)
	dh_illumos_make $(nsswitch:%=$(BUILD)/usr/src/lib/nsswitch/%)

	# build sgs
	dh_illumos_make --native $(BUILD)/usr/src/cmd/sgs/tools
	dh_illumos_make $(sgs:%=$(BUILD)/usr/src/cmd/sgs/%)
	cp usr/src/man/man1/ld.1 $(BUILD)/usr/src/man/man1/sunld.1
	# these two are patched:
	dh_illumos_make --native \
		$(BUILD)/usr/src/cmd/sgs/ld/i386 \
		$(BUILD)/usr/src/cmd/sgs/ldd/i386 \

	# build tools:
	dh_illumos_make --native $(make) $(cmd:%=$(BUILD)/usr/src/cmd/%)
	. $(BUILD)/usr/env.sh; unset LD_ALTEXEC; \
		$(CC) $(CFLAGS) -o $(ROOT)/usr/bin/crle \
		-DDEB_USRLIBDIR_32=\"$$DEB_USRLIBDIR_32\" \
		-DDEB_USRLIBDIR_64=\"$$DEB_USRLIBDIR_64\" \
		-DDEB_HOST_ARCH_BITS=$$DEB_HOST_ARCH_BITS \
		debian/crle.c

override_dh_auto_install:
	rm -rf debian/tmp
	cp -a $(ROOT) debian/tmp
	for l in `find debian/tmp/lib32 -maxdepth 1 -type l -name \*.so`; do \
		ln -sf `readlink -f $$l` debian/tmp/usr/lib32/`basename $$l`; \
		rm $$l; \
	done
	for l in `find debian/tmp/lib/$(DEB_HOST_MULTIARCH) -maxdepth 1 -type l -name \*.so`; do \
		ln -sf `readlink -f $$l` debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/`basename $$l`; \
		rm $$l; \
	done
	symlinks -c debian/tmp/usr/lib32
	symlinks -c debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)
	set -x; for l in $(subst lib,,$(fake_libs)); do \
		rm -f debian/tmp/usr/lib32/lib$$l.so && \
		rm -f debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/lib$$l.so && \
		echo "ASSERT(1, \"This is a fake library: ld -l$$l works, but nothing is linked\")" > debian/tmp/usr/lib32/lib$$l.so && \
		echo "ASSERT(1, \"This is a fake library: ld -l$$l works, but nothing is linked\")" > debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/lib$$l.so; \
	done
	: # Make everybody happy:
	rm debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/libc.so
	echo 'INPUT(libc.so.1 AS_NEEDED(-lsocket -lnsl -lresolv -liconv /usr/lib/$(DEB_HOST_MULTIARCH)/libssp.so.0))' \
		> debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/libc.so
	: # Even sunld:
	ln -sf libc.so.1 debian/tmp/lib/$(DEB_HOST_MULTIARCH)/libc.so

override_dh_install: debian/LC_DATA.gz debian/locales.config
	dh_install
	find debian/locales/usr/share/i18n/locales -name *.UTF-8.src | \
		xargs sed -i '/^LC_CTYPE/,/^END LC_CTYPE/d'
	./debian/generate-locales-all

override_dh_installman:
	# language=C because of ld.so.1.1
	dh_installman --language=C

override_dh_strip:
	: # we don't strip *this* libc

override_dh_fixperms:
	dh_fixperms
	chmod 0755 \
		debian/*/usr/lib/*/lddstub \
		debian/*/usr/lib?*/lddstub \
		debian/*/usr/lib/*/crle \
		debian/*/usr/lib?*/crle \
		debian/*/lib/*/ld.so.* \
		debian/*/lib?*/ld.so.*
	chmod 4755 debian/*/usr/lib/utmp_update

override_dh_makeshlibs:
	dh_makeshlibs -- -c4

# We remove LC_DATA from all *.UTF-8.src
# and when regenerating locales will insert contents of LC_DATA
# into source locale file. Illumos localedef does not support
# copy action for including other files source files.
debian/LC_DATA.gz:
	sh $(BUILD)/usr/src/cmd/localedef/data/ctype.sh \
		$(BUILD)/usr/src/cmd/localedef/data/*.UTF-8.src \
		| gzip -c -9 > $@

debian/locales.config: debian/locales.config.in
	perl -pe 'BEGIN {undef $$/; open(IN, "debian/SUPPORTED"); $$j=<IN>;} s/__PROVIDED_LOCALES__/$$j/g;' \
		$< > $@

override_dh_auto_clean:
	rm -rf $(BUILD)
	rm -f debian/LC_DATA.*
	rm -f debian/locales.config