#!/usr/bin/make -f
# -*- makefile -*-

#export DH_VERBOSE=1

DEB_HOST_ARCH_BITS ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_BITS)
DEB_HOST_ARCH      ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)

ifneq (,$(filter checkall,$(DEB_BUILD_OPTIONS)))
export RUN_ALL_TESTS ="yes"
endif

include /usr/share/mpi-default-dev/debian_defaults

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
else
NUMJOBS = 1
endif

# generic debian package builds don't use chip-specific optimisations
# e.g. don't use i786 instructions in the i386 build
export USE_HWOPT=n

ifeq ($(DEB_HOST_ARCH_BITS),64)
export NWCHEM_TARGET=LINUX64
export USE_64TO32="yes"
else
export NWCHEM_TARGET=LINUX
endif
export BLAS_SIZE=4
export BLAS_LIB="-lblas"
export LAPACK_LIB="-llapack"
export USE_SCALAPACK="yes"
export SCALAPACK_SIZE=4
export NWCHEM_MODULES="pnnl"
export NWCHEM_LONG_PATHS="y"
export PYTHONVERSION=$(shell py3versions -dv)
export PYTHONHOME=$(shell python3-config --prefix)
export LARGE_FILES=TRUE
export FC=gfortran
export USE_MPI="y"
export USE_MPIF="y"
export USE_MPIF4="y"
export MPI_LIB=/usr/lib
LIBMPI_MPICH="$(shell for w in `mpifort.mpich -show`; do if [ "x$${w%$${w#??}}" = "x-L" -o "x$${w%$${w#??}}" = "x-l" ]; then echo -n "$$w "; fi; done)"
LIBMPI_OPENMPI="$(shell pkg-config ompi-fort --libs)"
ifneq (,$(filter ccsdtq,$(DEB_BUILD_OPTIONS)))
export CCSDTQ="yes"
endif
ifneq (,$(filter ccsdtlr,$(DEB_BUILD_OPTIONS)))
export CCSDTLR="yes"
endif
export MRCC_METHODS=y
export IPCCSD=y
export EACCSD=y
export HAS_BLAS="yes"
export BLASOPT=-lblas -llapack
export ARMCI_NETWORK=SOCKETS
export USE_ARUR="yes"

%:
	dh $@ --with python3

execute_before_dh_auto_configure:
	rm -rf $(CURDIR)/pristine-src $(CURDIR)/build-mpich $(CURDIR)/build-openmpi
	tmpdir=`mktemp -d`; \
	cp -ra $(CURDIR)/* $${tmpdir}; \
	cp debian/dftd3/dftd3.tgz $${tmpdir}/src/nwpw/nwpwlib/nwpwxc; \
	mv $$tmpdir $(CURDIR)/pristine-src
	cp -ra pristine-src build-mpich
	cp -ra pristine-src build-openmpi

override_dh_auto_build-arch:
	set -e; \
	for mpi_flavor in mpich openmpi; do \
	  if [ "x$${mpi_flavor}" = "xmpich" ]; then \
	    export LIBMPI=$"$(LIBMPI_MPICH)$"; \
	    export LDFLAGS="$${LDFLAGS} -pthread"; \
	  else \
	    export LIBMPI=$"$(LIBMPI_OPENMPI)$"; \
	  fi; \
	  echo "building nwchem against $${mpi_flavor}"; \
	  echo "using LIBMPI=$${LIBMPI}"; \
	  export NWCHEM_TOP=$(CURDIR)/build-$${mpi_flavor}; \
	  export MPICC=mpicc.$${mpi_flavor}; \
	  export MPICXX=mpicxx.$${mpi_flavor}; \
	  export MPIF77=mpif77.$${mpi_flavor}; \
	  export MPIFC=mpifort.$${mpi_flavor}; \
	  export MPIF90=mpif90.$${mpi_flavor}; \
	  export MPI_INCLUDE=/usr/include/$(DEB_HOST_MULTIARCH)/$${mpi_flavor}; \
	  export MPIRUN_PATH=/usr/bin/mpirun.$${mpi_flavor}; \
	  export SCALAPACK=-lscalapack-$${mpi_flavor}; \
	  export BLACS=-lscalapack-$${mpi_flavor}; \
	  export EXTERNAL_GA_PATH=/usr/lib/$(DEB_HOST_MULTIARCH)/ga/$${mpi_flavor}; \
	  export GA_INCLUDE_PATH=/usr; \
	  export LIBDIR=$${NWCHEM_TOP}/lib/$(NWCHEM_TARGET); \
	  mkdir -p $${NWCHEM_TOP}/bin/$${NWCHEM_TARGET}; \
	  (cd $${NWCHEM_TOP}/src && NWCHEM_TOP=$${NWCHEM_TOP} make -j $(NUMJOBS) nwchem_config); \
	  if [ "x$(DEB_HOST_ARCH_BITS)" = "x64" ]; then \
	    (cd $${NWCHEM_TOP}/src && make -j $(NUMJOBS) 64_to_32) ; \
	    find $${NWCHEM_TOP}/src -name include_stamp | xargs rm -f; \
	    find $${NWCHEM_TOP}/src -name dependencies | xargs rm -f; \
	  fi; \
	  (cd $${NWCHEM_TOP}/src && make -j $(NUMJOBS)); \
	  (cd $${NWCHEM_TOP}/src/util && make -j $(NUMJOBS)); \
	  (cd $${NWCHEM_TOP}/src && make -j $(NUMJOBS) link); \
	  if [ "x$(DEB_HOST_ARCH_BITS)" = "x64" ]; then \
	    (cd $${NWCHEM_TOP}/src && make -j $(NUMJOBS) 32_to_64); \
	  fi; \
	  cp $${NWCHEM_TOP}/bin/$(NWCHEM_TARGET)/nwchem $${NWCHEM_TOP}/bin/$(NWCHEM_TARGET)/nwchem.$${mpi_flavor}; \
	done

override_dh_auto_clean:
	rm -rf $(CURDIR)/pristine-src $(CURDIR)/build-mpich $(CURDIR)/build-openmpi
	dh_testdir
	-(cd $(CURDIR)/src && make -j $(NUMJOBS) realclean)
	-(cd $(CURDIR)/doc && make -j $(NUMJOBS) realclean)
	rm -rf $(CURDIR)/bin $(CURDIR)/lib $(CURDIR)/src/tools/lib 
	rm -rf $(CURDIR)/QA/scratchdir $(CURDIR)/QA/testoutputs
	rm -f src/util/util_version.F src/stubs.F src/util/util_module_avail.F src/util/util_nwchem_version.F
	find $(CURDIR) -name "*.stamp" | xargs rm -f
	dh_auto_clean
	rm -f src/config/NWCHEM_CONFIG src/config/nwchem_config.h


override_dh_auto_test:
	dh_testdir
	-for mpi_flavor in mpich openmpi; do \
	  export NWCHEM_TOP=$(CURDIR)/build-$${mpi_flavor}; \
	  export NWCHEM_BASIS_LIBRARY=$${NWCHEM_TOP}/src/basis/libraries/; \
	  export NWCHEM_NWPW_LIBRARY=$${NWCHEM_TOP}/src/nwpw/libraryps/; \
	  export RUNTESTS=$${NWCHEM_TOP}/QA/runtests.mpi.unix; \
	  export NWCHEM_EXECUTABLE=$${NWCHEM_TOP}/bin/$(NWCHEM_TARGET)/nwchem}; \
	  (cd $(CURDIR)/build-$${mpi_flavor}/QA && if [ "$(RUN_ALL_TESTS)" = "yes" ]; then \
	   ../debian/testsuite all; else ../debian/testsuite; fi); \
	done

execute_after_dh_link:
	dh_link -pnwchem usr/bin/nwchem.$(ARCH_DEFAULT_MPI_IMPL) usr/bin/nwchem

override_dh_gencontrol:
	dh_gencontrol -- -Vnwchem:Depends="nwchem-$(ARCH_DEFAULT_MPI_IMPL) | nwchem-mpich | nwchem-openmpi"