#!/usr/bin/make -f

export DEB_BUILD_MAINT_OPTIONS = hardening=+all
export DEB_CFLAGS_MAINT_APPEND = -Wall
include /usr/share/dpkg/buildflags.mk

DEB_BUILD_PARALLEL := 1
ifneq "$(filter parallel=%,$(DEB_BUILD_OPTIONS))" ""
	njobs_requested := $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
	# Artificially limit parallelism in order not to run out of RAM.
	mem_total := $(shell grep MemTotal /proc/meminfo | tr -s ' ' | cut -d' ' -f2)
	njobs_max := $(patsubst 0,1,$(shell echo $$(( $(mem_total) / 2000000 ))))
	DEB_PARALLEL_JOBS_BUILD := $(shell echo $$(( $(njobs_requested) > $(njobs_max) ? $(njobs_max) : $(njobs_requested) )))
	# Compiling the test suite requires more RAM than compiling the library.
	njobs_max_check := $(patsubst 0,1,$(shell echo $$(( $(mem_total) / 3500000 ))))
	DEB_PARALLEL_JOBS_CHECK := $(shell echo $$(( $(njobs_requested) > $(njobs_max_check) ? $(njobs_max_check) : $(njobs_requested) )))
	# Disable CDBS handling of parallel building.
	DEB_MAKE_PARALLEL :=
	# Manually handle parallelism.
	DEB_MAKE_PARALLEL_JOBS_CHECK_ARGS := -j$(DEB_PARALLEL_JOBS_CHECK)
	DEB_MAKE_PARALLEL_JOBS_BUILD_ARGS := -j$(DEB_PARALLEL_JOBS_BUILD)
	DEB_MAKE_BUILD_TARGET = $(DEB_MAKE_PARALLEL_JOBS_BUILD_ARGS)
endif

DEB_MAKE_CHECK_TARGET := $(DEB_MAKE_PARALLEL_JOBS_CHECK_ARGS) check TMPDIR=$(CURDIR)/tmpdir
ifneq "$(filter hurd-i386 kfreebsd-i386,$(DEB_HOST_ARCH))" ""
DEB_MAKE_CHECK_TARGET += CXXFLAGS="$(CXXFLAGS:-O%=-O0) -std=c++11"
endif
ifneq "$(filter mips mipsel,$(DEB_HOST_ARCH))" ""
DEB_MAKE_CHECK_TARGET += CXXFLAGS="$(CXXFLAGS:-O%=-O0) -std=c++11 -mxgot"
endif
DEB_INSTALL_CHANGELOGS_ALL := NEWS
DEB_INSTALL_DOCS_ALL := AUTHORS README debian/README.Debian
DEB_DH_MAKESHLIBS_ARGS_ALL := -X usr/lib/fst -V -- -t

include /usr/share/cdbs/1/rules/upstream-tarball.mk
include /usr/share/cdbs/1/rules/utils.mk
include /usr/share/cdbs/1/class/autotools.mk
include /usr/share/cdbs/1/rules/debhelper.mk

DEB_TAR_SRCDIR := .

DEB_AUTO_UPDATE_LIBTOOL = pre
DEB_AUTO_UPDATE_ACLOCAL = ,
DEB_AUTO_UPDATE_AUTOMAKE = ,
DEB_AUTOMAKE_ARGS = --foreign --add-missing --copy
DEB_AUTO_UPDATE_AUTOCONF = 2.69

DEB_CONFIGURE_USER_FLAGS = --enable-far --enable-pdt --enable-lookahead-fsts --enable-ngram-fsts --enable-const-fsts --enable-compact-fsts --enable-compress --enable-linear-fsts --enable-mpdt --enable-bin --enable-static --with-libfstdir=/usr/lib/fst/8


DEB_COPYRIGHT_CHECK_IGNORE_REGEX := ^debian/(changelog|copyright(|_hints|_newhints)|.*/usr/(bin|lib)/.*)|src/(.*\.(o|lo|a|la|so|backup)|src/.*/.libs/.*)$$

BACKUP=configure aclocal.m4 config.h.in \
	compile \
	depcomp \
	missing \
	src/include/fst/config.h \
	ltmain.sh m4/libtool.m4 m4/ltoptions.m4 m4/ltversion.m4 m4/lt~obsolete.m4 m4/ltsugar.m4 \
	src/bin/Makefile.in \
	src/lib/Makefile.in \
	src/test/Makefile.in \
	src/Makefile.in \
	src/script/Makefile.in \
	src/extensions/far/Makefile.in \
	src/extensions/pdt/Makefile.in \
	src/extensions/compact/Makefile.in \
	src/extensions/const/Makefile.in \
	src/extensions/ngram/Makefile.in \
	src/extensions/Makefile.in \
	src/extensions/lookahead/Makefile.in \
	src/extensions/compress/Makefile.in \
	src/extensions/linear/Makefile.in \
	src/extensions/mpdt/Makefile.in \
	src/extensions/python/Makefile.in \
	src/extensions/special/Makefile.in \
	src/include/Makefile.in \
	debian/addons/openfstbc/openfstbc \
	Makefile.in

pre-build::
	# Backup files expected to be modified.
	set -e ; for i in $(BACKUP); do \
		if [ ! -f "$$i".backup ]; then cp -a "$$i" "$$i".backup; fi ; \
	done
	mkdir -p debian/manpages_files
	mkdir -p tmpdir
	set -e ; for i in debian/addons/man/*.1; do \
		sed -e 's/@DATE@/Feb 2016/g' -e 's/@VERSION@/1.5.1/g' $$i > debian/manpages_files/$$(basename $$i) ; \
	done
	cd debian/addons/openfstbc/ && ( ( cat makebcforofst.py ; echo print header) | python - 2>/dev/null ; cat openfstbc.backup ) > openfstbc

clean::
	set -e ; for i in $(BACKUP); do \
		if [ -f "$$i".backup ]; then mv -f "$$i".backup "$$i"; fi ; \
	done
	$(RM) -r debian/manpages_files
	$(RM) -r tmpdir

binary-post-install/libfst-tools::
	dh_bash-completion -p$(cdbs_curpkg)

# Needed by upstream build process
CDBS_BUILD_DEPENDS += , debhelper (>= 9~), dpkg-dev (>= 1.16.1~), zlib1g-dev, python, bash-completion