#!/usr/bin/make -f

# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1

SO:=3
MN:=0
VERS:=$(SO).$(MN)

GCC:=gcc

ARCH:=$(shell dpkg --print-architecture)
F77:=gfortran
FOPTS:= #-ff90
#OPTOPTS:=-g
#UNROLL:=
OPTOPTS:=-g -O3 -Wall
UNROLL:=-funroll-all-loops
ifneq (,$(filter $(ARCH), arm armel))
  OPTOPTS:=-g -O0
  UNROLL:=
endif

ifneq (,$(filter $(ARCH), m68k))
  #FOPTS:=-ffloat-store
  UNROLL:=
endif

ifeq ($(ARCH),alpha)
  FOPTS:=-mieee
endif

ifeq ($(ARCH),s390)
  OPTOPTS:=-g -O0
endif

ifneq (,$(filter $(ARCH), none))
  export ignore_testing_failures = -
endif

doc: 
	$(MAKE) html
	$(MAKE) man

#
#
# Configure
#
#

make.inc: install/make.inc.gfortran
	cat $< | sed -e "s,g77,$(F77),g" \
		     -e "s,\(^NOOPT  *=\),\1 \$$(PICOPTS) $(FOPTS),1" \
		     -e "s,-O3,\$$(PICOPTS) $(FOPTS) $(OPTOPTS),1" \
		     -e "s,\(^OPTS  *=\).*,\1 $(UNROLL) \$$(PICOPTS) $(OPTOPTS),1" \
		     -e "s,[^ ]*blas[^ ]*\.a,-lblas,1" \
		     -e "s,TIMER. *,#&," > $@
	echo "TIMER = INT_ETIME" >> $@

TIMEOUT:=1800

testing/Makefile.ori:
	cp testing/Makefile $@

testing/Makefile: testing/Makefile.ori
	cat $< | sed -e "s,\./x,$(ignore_testing_failures)../debian/trun $(TIMEOUT) ./x,g" >$@

#
#
# Build rules for libraries
#
#


liblapack_pic.a: make.inc testing/Makefile
	echo "Building liblapack_pic.a"
	$(MAKE) cleanlib
	$(MAKE) lapack_install PICOPTS=-fPIC
	$(MAKE) lib        PICOPTS=-fPIC
	mv liblapack.a $@

liblapack.so.$(VERS): liblapack_pic.a 
	echo "Building liblapack.so.$(VERS) from liblapack_pic.a"
	mkdir -p tmp
	cd tmp && ar x ../$<
	$(F77) -shared -Wl,-soname=liblapack.so.$(SO) -o $@ tmp/*.o  -L. -lblas
	rm -rf tmp

liblapack.so.$(SO): liblapack.so.$(VERS)
	ln -snf $< $@

liblapack.so: liblapack.so.$(SO)
	ln -snf $< $@

liblapack.a: make.inc testing/Makefile
	echo "Building liblapack.a"
	$(MAKE) lapack_install
	$(MAKE) lib
#	mv lapack_LINUX.a $@

liblapacke_pic.a: make.inc testing/Makefile
	echo "Building liblapacke_pic.a"
	cd lapacke; \
	$(MAKE) cleanlib; \
	$(MAKE) CFLAGS="$(OPTOPTS) -fPIC"; \
	mv lapacke.a $@


liblapacke.so.$(VERS): liblapacke_pic.a 
	echo "Building liblapacke.so.$(VERS) from liblapacke_pic.a"
	cd lapacke; \
	mkdir -p tmp; \
	cd tmp && ar x ../$< && cd -; \
	$(GCC) -shared -Wl,-soname=liblapacke.so.$(SO) -o $@ tmp/*.o  -L. -lblas -llapack; \
	rm -rf tmp

liblapacke.so.$(SO): liblapacke.so.$(VERS)
	cd lapacke; \
	ln -snf $< $@

liblapacke.so: liblapacke.so.$(SO)
	cd lapacke; \
	ln -snf $< $@

liblapacke.a: make.inc testing/Makefile
	echo "Building liblapacke.a"
	cd lapacke; \
	$(MAKE) CFLAGS="$(OPTOPTS)"; \
	mv lapacke.a $@

BF:=liblapack.a liblapack_pic.a liblapack.so  liblapacke.a  liblapacke_pic.a liblapacke.so 
build: $(BF) make.inc


#
#
# Testing rules
#
#

TB:=s d c z
TB:=$(addprefix tst,$(TB))
TB:=$(addprefix eig,$(TB)) $(addprefix lin,$(TB))
TB:=$(addprefix testing/x,$(TB))
TESF:=cbak cbal cbb cec ced cgbak cgbal cgd cgg cglm cgqr cgsv\
	clse cnep csb csep csg csvd ctest dbak dbal dbb dec ded\
	dgbak dgbal dgd dgg dglm dgqr dgsv dlse dnep dsb dsep dsg\
	dsvd dtest sbak sbal sbb sec sed sgbak sgbal sgd sgg sglm\
	sgqr sgsv slse snep ssb ssep ssg ssvd stest zbak zbal zbb\
	zec zed zgbak zgbal zgd zgg zglm zgqr zgsv zlse znep zsb\
	zsep zsg zsvd ztest

#
# Work around for alpha, cgqr test fails to converge
#
# Now fixed
#
# FIXME: filtering here has no effect; all tests are run.
#ifeq ($(ARCH),alpha)
#  TESF:=$(filter-out cgqr,$(TESF))
#endif

TESF:=$(addprefix testing/,$(addsuffix .out,$(TESF)))

$(TB) $(TESF):  liblapack.so
	chmod +x debian/trun
	grep -q debian/trun testing/Makefile \
	    || sed -i -e "s,\./x,$(ignore_testing_failures)../debian/trun $(TIMEOUT) ./x,g" testing/Makefile
	$(ignore_testing_failures)LD_LIBRARY_PATH=$$(pwd):$$LD_LIBRARY_PATH \
	    $(MAKE) PICOPTS= \
		LLIB="-L $$(pwd) -llapack -lblas" lapack_testing & \
		j=$$! ;\
		tail -f --pid=$$j --retry $(TESF) & \
		wait $$j


$(subst testing,debian/test,$(TESF)):\
	debian/test/%: testing/%
	mkdir -m 777 -p $(@D)
	echo Test file $(@F) >$@
	cat $< >> $@

debian/test_results: $(subst testing,debian/test,$(TESF))
	echo "These libraries and tests were compiled with:" >$@
	$(F77) -v >>$@
	cat $^ >>$@

debian/liblapack3gf.templates: debian/test_results
	cp debian/main_templates $@
#	chmod +x debian/rawk
#	cat $^ | debian/rawk >>$@ ; j=$$? ; echo Warning level: $$j;\
		cat debian/liblapack3gf.config | sed "s,^STAT=.,STAT=$$j,1" >tmp && \
		mv tmp debian/liblapack3gf.config
#	cat $@ debian/liblapack3gf.config

#
#
# Install
#
#

debian/tmp/usr/lib/lapack/%: %
	dh_testdir
	dh_testroot

	install -m 755 -d $(@D)
	[ -L $* ] || install -m 644 $< $(@D)
	! [ -L $* ] || cp -d $< $@

$(addprefix debian/tmp/usr/lib/liblapack3gf/,$(subst testing/,,$(TB))): \
	debian/tmp/usr/lib/liblapack3gf/%: testing/%
	dh_testdir
	dh_testroot

	install -m 755 -d $(@D)
	install -m 755 $< $(@D)


#IF:=$(addprefix liblapack.,a so so.$(SO) so.$(VERS)) liblapack_pic.a
#IF:=$(addprefix debian/tmp/usr/lib/lapack/,$(IF))
#IF:=$(IF) $(addprefix debian/tmp/usr/lib/liblapack3gf/,$(subst testing/,,$(TB)))

install: $(IF) $(MF3) debian/test_results debian/liblapack3gf.templates
	dh_testdir
	dh_testroot
#	dh_movefiles


#
#
# Clean
#
#


clean:: make.inc
	dh_testdir
	dh_testroot
	rm -rf debian/*_stamp debian/*_results lib* testing/*out
#	find man -name "*.$(MANEXT)" -exec rm {} \;
	rm -rf *.a install/test* debian/test/ debian/time/
	rm -f debian/test_results debian/liblapack3gf.templates
	rm -f testing/tmp
	cd lapacke && $(MAKE) clean
	touch TESTING/xlinfoo TESTING/xeigfoo  && $(MAKE) clean
	rm -f make.inc

	-[ -e testing/Makefile.ori ] \
		&& mv testing/Makefile.ori testing/Makefile

	dh_clean

#
#
# Package rules
#
#


# Build architecture-independent files here.
binary-indep: doc install
	dh_testdir -i
	dh_testroot -i
	dh_install -i
	dh_installdocs -i
	dh_installexamples -i
	dh_installman -i -pliblapack-doc
	dh_installchangelogs -i
	dh_link -i
	dh_strip -i
	dh_compress -i
	dh_fixperms -i
	dh_makeshlibs -i -n
	dh_installdeb -i
	dh_shlibdeps -i
	dh_gencontrol -i
	dh_md5sums -i
	dh_builddeb -i

# Build architecture-dependent files here.
binary-arch: install
	dh_testdir -a
	dh_testroot -a
	dh_install -a
	dh_installdocs -a
	dh_installdebconf -a
	dh_installexamples -a
	dh_installman -a -pliblapack-test
	dh_installchangelogs -a
	dh_link -a
	dh_strip -a
	dh_compress -a
	dh_fixperms -a
	dh_makeshlibs -a
	dh_installdeb -a
	dh_shlibdeps -a -l $$(pwd)
	dh_gencontrol -a
	dh_md5sums -a
	dh_builddeb -a

binary: binary-indep binary-arch
.PHONY: clean binary-indep binary-arch binary \
	doc build
