#!/usr/bin/make -f

ARCHITECTURE := $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)
DEB_HOST_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)

CFLAGS = -Wall -g

ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
	CFLAGS += -O0
else
	CFLAGS += -O2
endif

CONFFLAGS := --host=$(DEB_HOST_GNU_TYPE) --build=$(DEB_BUILD_GNU_TYPE) --prefix=/usr --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info --enable-shared --enable-mpi --enable-threads

ifeq ($(ARCHITECTURE), i386)
  ARCHCONFFLAGS := --enable-i386-hacks
endif

build: build-arch build-indep

autoreconf-stamp: 
	autoreconf -f -i -I.
	touch autoreconf-stamp

build-arch: build-arch-stamp
build-arch-stamp: autoreconf-stamp 
	dh_testdir
	# single precision
	F77=gfortran CFLAGS="$(CFLAGS)" CC=mpicc ./configure $(CONFFLAGS) --enable-float --enable-type-prefix $(ARCHCONFFLAGS)
	$(MAKE)
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
	#$(MAKE) -C tests check
	./tests/fftw_test  -t -e -v -p 1024 -x 1
	./tests/rfftw_test -t -e -v -p 1024 -x 1
endif
	$(MAKE) install DESTDIR=$(CURDIR)/debian/tmp-single
	$(MAKE) clean
	# double precision
	F77=gfortran CFLAGS="$(CFLAGS)" CC=mpicc ./configure $(CONFFLAGS) $(ARCHCONFFLAGS)
	$(MAKE)
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
	#$(MAKE) -C tests check
	./tests/fftw_test  -t -e -v -p 1024 -x 1
	./tests/rfftw_test -t -e -v -p 1024 -x 1
endif
	$(MAKE) install DESTDIR=$(CURDIR)/debian/tmp-double
	touch build-arch-stamp

build-indep: build-indep-stamp
build-indep-stamp: autoreconf-stamp
	# docs
	F77=gfortran CFLAGS="$(CFLAGS)" ./configure $(CONFFLAGS) --enable-float --enable-type-prefix $(ARCHCONFFLAGS)
	rm -f doc/fftw.info
	$(MAKE) -C doc
	$(MAKE) -C doc html 
	$(MAKE) -C FAQ 
	touch build-indep-stamp

clean: clean1st 
clean1st:
	dh_testdir
	dh_testroot
	rm -f build-arch-stamp build-indep-stamp autoreconf-stamp
	# Add here commands to clean up after the build process.
	[ ! -f Makefile ] || $(MAKE) distclean
	[ ! -f Makefile ] || $(MAKE) -C doc clean-local
	[ ! -f Makefile ] || $(MAKE) -C FAQ clean
	rm -f compile fftw/libfftw.la mpi/libfftw_mpi.la mpi/librfftw_mpi.la rfftw/librfftw.la threads/libfftw_threads.la threads/librfftw_threads.la
	rm -rf $(CURDIR)/debian/tmp-*
	dh_clean 

install: install-indep install-arch
install-indep:
	dh_testdir
	dh_testroot
	dh_clean -k -i
	dh_installdirs -i
	dh_install -p fftw-docs FAQ/fftw-faq.html/*.html usr/share/doc/fftw-docs/FAQ
	dh_install -p fftw-docs doc/*.html usr/share/doc/fftw-docs/html
	dh_install -p fftw-docs doc/*.gif usr/share/doc/fftw-docs/html
	#
	dh_install -p fftw-docs debian/mpi/Makefile mpi/TOMS_transpose.h \
		mpi/fftw_mpi_test.c mpi/rfftw_mpi_test.c mpi/sched.h \
		mpi/test_sched.c mpi/test_transpose_mpi.c \
		usr/share/doc/fftw-docs/examples/mpi
	#
	dh_install -p fftw-docs debian/tests/Makefile fftw/config.h fftw/fftw-int.h usr/share/doc/fftw-docs/examples/tests
	for i in README fftw_test.c rfftw_test.c test_main.c test_main.h; do \
		dh_install -p fftw-docs tests/$$i usr/share/doc/fftw-docs/examples/tests; \
	done
	#
	dh_install -p fftw-docs debian/threads/Makefile usr/share/doc/fftw-docs/examples/threads
	for i in fftw_threads-int.h fftw_threads_test.c rfftw_threads_test.c; do \
		dh_install -p fftw-docs threads/$$i usr/share/doc/fftw-docs/examples/threads; \
	done

install-arch:
	dh_testdir
	dh_testroot
	dh_clean -k -s
	dh_installdirs -s
	mkdir -p $(CURDIR)/debian/tmp-single/usr/share/doc/sfftw-dev/fortran
	mkdir -p $(CURDIR)/debian/tmp-double/usr/share/doc/fftw-dev/fortran
	cp -a fortran/fftw_f77.i $(CURDIR)/debian/tmp-single/usr/share/doc/sfftw-dev/fortran/
	cp -a fortran/fftw_f77.i $(CURDIR)/debian/tmp-double/usr/share/doc/fftw-dev/fortran/
	dh_install --sourcedir=$(CURDIR)/debian/tmp-single -p sfftw2
	dh_install --sourcedir=$(CURDIR)/debian/tmp-single -p sfftw-dev
	dh_install --sourcedir=$(CURDIR)/debian/tmp-double -p fftw2
	dh_install --sourcedir=$(CURDIR)/debian/tmp-double -p fftw-dev

binary-common:
	dh_testdir
	dh_testroot
	dh_installchangelogs ChangeLog
	dh_installdocs
	dh_installexamples
	dh_installman
	dh_installinfo
	dh_link
	dh_strip
	dh_compress -X.c -X.h -XMakefile
	dh_fixperms
	dh_makeshlibs
	dh_installdeb
	dh_shlibdeps
	dh_gencontrol
	dh_md5sums
	dh_builddeb

binary-indep: build-indep install-indep
	$(MAKE) -f debian/rules DH_OPTIONS=-i binary-common

binary-arch: build-arch install-arch
	$(MAKE) -f debian/rules DH_OPTIONS=-a binary-common

binary: binary-arch binary-indep
.PHONY: build clean binary-indep binary-arch binary install install-indep install-arch clean1st autoreconf-stamp