#!/usr/bin/make -f

# The versions of python currently supported
PYVERS=$(shell pyversions -s)
# The current default version of python
PYVER=$(shell pyversions -d)

CFLAGS = `dpkg-buildflags --get CFLAGS`
CFLAGS += -Wall
LDFLAGS = `dpkg-buildflags --get LDFLAGS`
CPPFLAGS = `dpkg-buildflags --get CPPFLAGS`

ifeq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
      CFLAGS += -fno-strict-aliasing
endif

TARGETS := main $(PYVERS) $(PYVERS:%=%-dbg)

WITH_UDEB := $(shell dpkg-vendor --derives-from Ubuntu && echo yes)

ifdef WITH_UDEB
$(if $(shell grep -q libxml2-udeb debian/control || echo yes),$(shell cat debian/control.udeb >> debian/control))
TARGETS += udeb
else
$(if $(shell grep -q libxml2-udeb debian/control && echo yes),$(shell sed -i /libxml2-udeb/,\$$d debian/control))
export DH_OPTIONS = -Nlibxml2-udeb
endif

CONFIGURE_FLAGS := --with-history CC="$(CC) -Wl,--as-needed" CFLAGS="$(CFLAGS)" CPPFLAGS="$(CPPFLAGS)" LDFLAGS="$(LDFLAGS)" --cache-file="$(CURDIR)/build/config.cache"

override_dh_auto_configure: $(TARGETS:%=configure-%)

configure-%:
	dh_auto_configure --builddirectory=build/$* -- $(CONFIGURE_FLAGS)

configure-main: CONFIGURE_FLAGS += --without-python
configure-python%: CONFIGURE_FLAGS += --with-python=/usr/bin/$*
configure-udeb: CONFIGURE_FLAGS += --without-history --with-minimum --with-tree --with-output

override_dh_auto_build: $(TARGETS:%=build-%)

build-%: BUILD_DIR=build/$*
build-%:
	$(if $(filter $(BUILD_DIR),build/$*),,[ -d $(BUILD_DIR) ] || mv build/$*/python $(BUILD_DIR))
	dh_auto_build --builddirectory=$(BUILD_DIR) -- $(BUILD_FLAGS)

build-python%: BUILD_DIR=build/main/$*
build-python%: BUILD_FLAGS = libxml2mod_la_LIBADD='$$(mylibs)'
build-python%-dbg: BUILD_FLAGS += PYTHON_INCLUDES=/usr/include/$(*:-dbg=_d) LDFLAGS="-L$(CURDIR)/debian/tmp/usr/lib" CFLAGS="-Wall -g -O0"

override_dh_auto_clean:
	rm -rf build debian/tmp-dbg

	-test -r /usr/share/misc/config.sub && \
	cp -f /usr/share/misc/config.sub config.sub
	-test -r /usr/share/misc/config.guess && \
	cp -f /usr/share/misc/config.guess config.guess

override_dh_auto_install: $(TARGETS:%=install-%)

install-main:
	dh_auto_install --builddirectory=build/main
	mv debian/tmp/usr/share/aclocal/libxml.m4 debian/tmp/usr/share/aclocal/libxml2.m4

	# Properly install documentation in /usr/share/doc/libxml2-doc
	install -d debian/tmp/usr/share/doc/libxml2-doc/examples
	install -m 644 \
		doc/*.html \
		doc/*.gif \
		doc/*.png \
		doc/libxml2-api.xml debian/tmp/usr/share/doc/libxml2-doc
	install -m 644 \
		doc/examples/*.c \
		doc/examples/*.res \
		doc/examples/index.html \
		doc/examples/[tw]*.xml debian/tmp/usr/share/doc/libxml2-doc/examples
	cp -a \
		doc/html \
		doc/tutorial debian/tmp/usr/share/doc/libxml2-doc

install-python%-dbg:
	$(MAKE) -C build/main/python$*-dbg DESTDIR=$(CURDIR)/debian/tmp-dbg install-pythonLTLIBRARIES
	prename 's/(?<!_d)\.so$$/_d.so/' debian/tmp-dbg/usr/lib/python$*/*-packages/*.so

install-python%:
	dh_auto_install --builddirectory=build/main/python$*

install-udeb:
	dh_auto_install --builddirectory=build/udeb --destdir=debian/tmp-udeb

override_dh_installdocs:
	dh_installdocs -A AUTHORS TODO README NEWS
	dh_installdocs -ppython-libxml2 python/TODO

override_dh_compress:
	dh_compress -Xexamples/ -Xtutorial/ -Xhtml/ -X.html

override_dh_installchangelogs:
	dh_installchangelogs -plibxml2 ChangeLog
	dh_installchangelogs -Nlibxml2 -XChangeLog

override_dh_install:
	dh_install -Npython-libxml2-dbg -Nlibxml2-udeb
	dh_install -ppython-libxml2-dbg --sourcedir=debian/tmp-dbg
	dh_install -plibxml2-udeb --sourcedir=debian/tmp-udeb
	sed "/dependency_libs/ s/'.*'/''/" debian/tmp/usr/lib/libxml2.la > debian/libxml2-dev/usr/lib/libxml2.la

override_dh_strip:
	dh_strip -a --dbg-package=libxml2-dbg -Npython-libxml2 -Npython-libxml2-dbg
	dh_strip -ppython-libxml2 --dbg-package=python-libxml2-dbg
	$(foreach python, $(filter-out $(PYVER), $(PYVERS)),\
		cd $(CURDIR)/debian/python-libxml2/usr/lib/pyshared; \
		if diff $(python)/libxml2mod.so $(PYVER)/libxml2mod.so > /dev/null 2>&1; then \
			rm -f $(python)/libxml2mod.so; \
			ln -s ../$(PYVER)/libxml2mod.so $(python)/libxml2mod.so; \
		fi;)

override_dh_makeshlibs:
	dh_makeshlibs -a $(if $(WITH_UDEB),--add-udeb=libxml2-udeb )-V 'libxml2 (>= 2.7.4)' -- -c4

%:
	dh --with python2 $@