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## ARPACK ##

ifeq ($(USE_SYSTEM_BLAS), 0)
$(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-configured: | $(build_prefix)/manifest/openblas
else ifeq ($(USE_SYSTEM_LAPACK), 0)
$(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-configured: | $(build_prefix)/manifest/lapack
endif

ARPACK_FFLAGS := $(USE_BLAS_FFLAGS)
ARPACK_CFLAGS :=

ifeq ($(USE_BLAS64), 1)
ARPACK_CFLAGS += -DBLASINT=int64_t
ifneq ($(USEIFC),1)
ifeq ($(USE_SYSTEM_BLAS), 0)
ifeq ($(OPENBLAS_SYMBOLSUFFIX), 64_)
ARPACK_FFLAGS += -cpp -ffixed-line-length-none
ARPACK_OPENBLASFCNS1 := axpy copy gemv geqr2 lacpy lahqr lanhs larnv lartg lascl laset scal trevc trmm trsen gbmv gbtrf gbtrs gttrf gttrs pttrf pttrs
ARPACK_OPENBLASFCNS2 := dot ger labad laev2 lamch lanst lanv2 lapy2 larf larfg lasr nrm2 orm2r rot steqr swap
ARPACK_OPENBLASFCNS3 := dotc geru unm2r
ARPACK_OPENBLASFCNS4 := COPY LABAD LAMCH LANHS LANV2 LARFG ROT GEMV
ARPACK_FFLAGS += $(foreach fcn, $(ARPACK_OPENBLASFCNS1) $(ARPACK_OPENBLASFCNS2), -Ds$(fcn)=s$(fcn)_64 -Dd$(fcn)=d$(fcn)_64)
ARPACK_FFLAGS += $(foreach fcn, $(ARPACK_OPENBLASFCNS1) $(ARPACK_OPENBLASFCNS3), -Dc$(fcn)=c$(fcn)_64 -Dz$(fcn)=z$(fcn)_64)
ARPACK_FFLAGS += $(foreach fcn, $(ARPACK_OPENBLASFCNS4), -DS$(fcn)=S$(fcn)_64 -DD$(fcn)=D$(fcn)_64)
ARPACK_FFLAGS += -Dscnrm2=scnrm2_64 -Ddznrm2=dznrm2_64 -Dcsscal=csscal_64 -Dzdscal=zdscal_64
# CFLAGS are for the configure checks
ARPACK_CFLAGS += -Dsgemm_=sgemm_64_ -Dcheev_=cheev_64_
endif
endif
endif
endif

ARPACK_MFLAGS := F77="$(FC)" MPIF77="$(FC)"
ARPACK_FFLAGS += $(FFLAGS) $(JFFLAGS)
ARPACK_FLAGS := --with-blas="$(LIBBLAS)" --with-lapack="$(LIBLAPACK)" \
    --disable-mpi --enable-shared FFLAGS="$(ARPACK_FFLAGS)" \
    CFLAGS="$(CFLAGS) $(ARPACK_CFLAGS)" LDFLAGS="$(LDFLAGS) $(RPATH_ESCAPED_ORIGIN)"

# ARPACK-NG upstream keeps changing their download filenames
$(SRCCACHE)/arpack-ng-$(ARPACK_VER).tar.gz: | $(SRCCACHE)
	$(JLDOWNLOAD) $@ https://julialang-s3.julialang.org/src/arpack-ng-$(ARPACK_VER).tar.gz
	touch -c $@
$(SRCCACHE)/arpack-ng-$(ARPACK_VER)-testA.mtx: | $(SRCCACHE)
	$(JLDOWNLOAD) $@ https://raw.githubusercontent.com/opencollab/arpack-ng/$(ARPACK_VER)/TESTS/testA.mtx
	touch -c $@

$(SRCCACHE)/arpack-ng-$(ARPACK_VER)/source-extracted: $(SRCCACHE)/arpack-ng-$(ARPACK_VER).tar.gz
	$(JLCHECKSUM) $<
	cd $(dir $<) && $(TAR) -zxf $<
	touch -c $(SRCCACHE)/arpack-ng-$(ARPACK_VER)/configure # old target
	echo 1 > $@

$(SRCCACHE)/arpack-ng-$(ARPACK_VER)/arpack-tests-blasint.patch-applied: $(SRCCACHE)/arpack-ng-$(ARPACK_VER)/source-extracted
	cd $(dir $@) && patch -p1 < $(SRCDIR)/patches/arpack-tests-blasint.patch
	echo 1 > $@

$(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-configured: $(SRCCACHE)/arpack-ng-$(ARPACK_VER)/source-extracted $(SRCCACHE)/arpack-ng-$(ARPACK_VER)/arpack-tests-blasint.patch-applied
	mkdir -p $(dir $@)
	cd $(dir $@) && \
	$(dir $<)/configure $(CONFIGURE_COMMON) $(ARPACK_FLAGS)
	echo 1 > $@

$(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-compiled: $(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-configured
	$(MAKE) -C $(dir $<) $(ARPACK_MFLAGS)
	echo 1 > $@

$(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-checked: $(SRCCACHE)/arpack-ng-$(ARPACK_VER)-testA.mtx $(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-compiled
	$(JLCHECKSUM) $<
	cp $< $(dir $@)/TESTS/testA.mtx
ifeq ($(OS),$(BUILD_OS))
	$(MAKE) -C $(dir $@) check $(ARPACK_MFLAGS)
endif
	echo 1 > $@

define ARPACK_INSTALL
	$(call MAKE_INSTALL,$1,$2,$3)
ifeq ($(OS), WINNT)
	mv $2/$$(build_shlibdir)/libarpack-2.dll $2/$$(build_shlibdir)/libarpack.$$(SHLIB_EXT)
endif
endef

$(eval $(call staged-install, \
	arpack,arpack-ng-$(ARPACK_VER), \
	ARPACK_INSTALL,$(ARPACK_MFLAGS),, \
	$$(INSTALL_NAME_CMD)libarpack.$$(SHLIB_EXT) $$(build_shlibdir)/libarpack.$$(SHLIB_EXT)))

clean-arpack:
	-rm $(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-configured $(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-compiled
	-$(MAKE) -C $(BUILDDIR)/arpack-ng-$(ARPACK_VER) clean

distclean-arpack:
	-rm -rf $(SRCCACHE)/arpack-ng-$(ARPACK_VER).tar.gz \
		$(SRCCACHE)/arpack-ng-$(ARPACK_VER) \
		$(SRCCACHE)/arpack-ng-$(ARPACK_VER)-testA.mtx \
		$(BUILDDIR)/arpack-ng-$(ARPACK_VER)


get-arpack: $(SRCCACHE)/arpack-ng-$(ARPACK_VER).tar.gz $(SRCCACHE)/arpack-ng-$(ARPACK_VER)-testA.mtx
extract-arpack: $(SRCCACHE)/arpack-ng-$(ARPACK_VER)/source-extracted
configure-arpack: $(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-configured
compile-arpack: $(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-compiled
# XXX: bug_1315 ARPACK tests fail stochastically
fastcheck-arpack: #check-arpack
check-arpack: $(BUILDDIR)/arpack-ng-$(ARPACK_VER)/build-checked
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