#!/usr/bin/make -f

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

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

export DEB_BUILD_MAINT_OPTIONS=optimize=-lto

HAS_GCC_10 := $(shell if [ `mpifort -dumpversion` -ge 10 ]; then echo yes; fi )
ifeq (yes,$(HAS_GCC_10))
  BUILD_FLAGS_EXTRA = OPTF_DEBIAN="-fallow-argument-mismatch"
endif

# full 64-bit all integers. We're not ready for this.
#OPTC_64BIT = -DINTSIZE64 -DPORD_INTSIZE64
#OPTF_64BIT = -fdefault-integer-8

# 64 bit in MUMPS ordering (PORD) only
OPTC_64BIT = -DPORD_INTSIZE64
OPTF_64BIT =

BUILD_FLAGS_64BIT = OPTC_64BIT="$(OPTC_64BIT)" OPTF_64BIT="$(OPTF_64BIT)"

SCOTCH64_LIBDIR=/usr/lib/$(DEB_HOST_MULTIARCH)/scotch-int64

# skip tests on these arches
ARCH_NO_TEST_LIST = sh4

empty :=
space := $(empty)$(empty)

# run tests, or not
RUNTEST=yes
ifneq (,$(findstring $(space)$(DEB_HOST_ARCH)$(space), $(space)$(ARCH_NO_TEST_LIST)$(space)))
  RUNTEST=no
endif
ifeq (nocheck,$(findstring nocheck,$(DEB_BUILD_OPTIONS)))
  RUNTEST=no
endif

# skip MPI tests on these arches
ARCH_NO_MPI_TEST_LIST = hurd-i386 m68k

# run MPI tests, or not
RUN_MPI_TEST=yes
ifneq (,$(findstring $(space)$(DEB_HOST_ARCH)$(space), $(space)$(ARCH_NO_MPI_TEST_LIST)$(space)))
  RUN_MPI_TEST=no
endif


%:
	dh $@

override_dh_auto_clean:
	cp -f debian/Makefile.seq.inc Makefile.inc
	dh_auto_clean
	rm -f src/build_mumps_int_def
	rm -rf lib Makefile.inc \
	  libmumps libmumps_seq libmumps_scotch libmumps_ptscotch \
	  libmumps64 libmumps64_seq libmumps64_scotch libmumps64_ptscotch
	rm -f PORD/lib/libpord*.a

override_dh_auto_build-indep:
	cp -f debian/Makefile.par.inc Makefile.inc
	cd src; make ../include/mumps_int_def.h

override_dh_auto_build-arch:
	mkdir lib
	echo "Building 64-bit MUMPS using $(BUILD_FLAGS_64BIT)"
	cp -f debian/Makefile.ptscotch.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) $(BUILD_FLAGS_64BIT) \
	    ISCOTCH=-I/usr/include/scotch-int64 LSCOTCHDIR=$(SCOTCH64_LIBDIR) SCOTCH_EXTRA_FLAGS="-Wl,-rpath=$(SCOTCH64_LIBDIR)" \
	    PLAT="_64pord_ptscotch" all allshared
	cp -a lib libmumps64_ptscotch
	$(MAKE) clean
	rm -f Makefile.inc
	cp -f debian/Makefile.scotch.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) $(BUILD_FLAGS_64BIT) \
	    ISCOTCH=-I/usr/include/scotch-int64 LSCOTCHDIR=$(SCOTCH64_LIBDIR) SCOTCH_EXTRA_FLAGS="-Wl,-rpath=$(SCOTCH64_LIBDIR)" \
	    PLAT="_64pord_scotch" all allshared
	cp -a lib libmumps64_scotch
	cp -af libseq/lib* libmumps64_scotch
	$(MAKE) clean
	rm -f Makefile.inc
	cp -f debian/Makefile.seq.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) $(BUILD_FLAGS_64BIT) PLAT="_64pord_seq" all allshared
	cp -a lib libmumps64_seq
	cp -af libseq/lib* libmumps64_seq
	$(MAKE) clean
	rm -f Makefile.inc
	cp -f debian/Makefile.par.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) $(BUILD_FLAGS_64BIT) PLAT="_64pord" all allshared
	cp -a lib libmumps64
	echo "Building 32-bit MUMPS"
	$(MAKE) clean
	rm -f Makefile.inc
	cp -f debian/Makefile.ptscotch.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) PLAT="_ptscotch" all allshared
	cp -a lib libmumps_ptscotch
	$(MAKE) clean
	rm -f Makefile.inc
	cp -f debian/Makefile.scotch.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) PLAT="_scotch" all allshared
	cp -a lib libmumps_scotch
	cp -af libseq/lib* libmumps_scotch
	$(MAKE) clean
	rm -f Makefile.inc
	cp -f debian/Makefile.seq.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) PLAT="_seq" all allshared
	cp -a lib libmumps_seq
	cp -af libseq/lib* libmumps_seq
	$(MAKE) clean
	rm -f Makefile.inc
	cp -f debian/Makefile.par.inc Makefile.inc
	$(MAKE) MUMPS_MPI=$(ARCH_DEFAULT_MPI_IMPL) $(BUILD_FLAGS_EXTRA) all allshared
	cp -a lib libmumps

ifeq (yes,$(findstring yes,$(RUNTEST)))
override_dh_auto_test-indep:
	echo "Tests run only for arch builds."

override_dh_auto_test-arch:
	cp -a Makefile.inc Makefile.inc.build || /bin/true
	LD_LIBRARY_PATH=$(CURDIR)/lib ./debian/tests/mumps-examples-serial
	LD_LIBRARY_PATH=$(CURDIR)/libmumps64 ./debian/tests/mumps64-examples-serial
ifeq (yes,$(findstring yes,$(RUN_MPI_TEST)))
	LD_LIBRARY_PATH=$(CURDIR)/libmumps64 ./debian/tests/mumps64-examples-mpi
	LD_LIBRARY_PATH=$(CURDIR)/lib ./debian/tests/mumps-examples-mpi
endif
	mv Makefile.inc.build Makefile.inc || /bin/true
endif

override_dh_auto_install-indep:
	echo "No make-based install required for arch-independent builds."