CXX=g++ # requires g++-8 or newer / icpc (with gcc compatibility 7.5 or newer) / clang++ with llvm-10 or newer
CXXFLAGS = -std=c++11 -fopenmp -Wall -Wfloat-conversion # need C++11 and OpenMP

#Optional flags
#CXXFLAGS += -O0 # debug build
CXXFLAGS += -O3 -march=native -DNDEBUG # release build

ifeq ($(shell uname -s),Darwin)
	CXXFLAGS += -g -rdynamic -Wl,-no_pie # for stack trace (on Mac)
else
	CXXFLAGS += -g -rdynamic # for stack trace
endif

#CXXFLAGS += -DSCTL_MEMDEBUG # Enable memory checks
CXXFLAGS += -DSCTL_GLOBAL_MEM_BUFF=0 # Global memory buffer size in MB

CXXFLAGS += -DSCTL_PROFILE=5 -DSCTL_VERBOSE # Enable profiling

CXXFLAGS += -DSCTL_QUAD_T=__float128 # Enable quadruple precision

#CXXFLAGS += -DSCTL_HAVE_MPI #use MPI

CXXFLAGS += -lblas -DSCTL_HAVE_BLAS # use BLAS
CXXFLAGS += -llapack -DSCTL_HAVE_LAPACK # use LAPACK
#CXXFLAGS += -qmkl -DSCTL_HAVE_BLAS -DSCTL_HAVE_LAPACK -DSCTL_HAVE_FFTW3_MKL # use MKL BLAS, LAPACK and FFTW (Intel compiler)
#CXXFLAGS += -lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lpthread -DSCTL_HAVE_BLAS -DSCTL_HAVE_LAPACK # use MKL BLAS and LAPACK (non-Intel compiler)

CXXFLAGS += -lfftw3 -DSCTL_HAVE_FFTW
CXXFLAGS += -lfftw3f -DSCTL_HAVE_FFTWF
CXXFLAGS += -lfftw3l -DSCTL_HAVE_FFTWL

#CXXFLAGS += -DSCTL_HAVE_SVML

#CXXFLAGS += -I${PETSC_DIR}/include -I${PETSC_DIR}/../include -DSCTL_HAVE_PETSC
#LDLIBS += -L${PETSC_DIR}/lib -lpetsc

#PVFMM_INC_DIR = ../include
#PVFMM_LIB_DIR = ../lib/.libs
#CXXFLAGS += -DSCTL_HAVE_PVFMM -I$(PVFMM_INC_DIR)
#LDLIBS += $(PVFMM_LIB_DIR)/libpvfmm.a


RM = rm -f
MKDIRS = mkdir -p

BINDIR = ./bin
SRCDIR = ./src
OBJDIR = ./obj
INCDIR = ./include

TARGET_BIN = \
       $(BINDIR)/test \
       $(BINDIR)/test-fft \
       $(BINDIR)/test-fmm \
       $(BINDIR)/test-ode-solver \
       $(BINDIR)/test-pt-tree \
       $(BINDIR)/test-sph-harm \
       $(BINDIR)/test-vec

all : $(TARGET_BIN)

$(BINDIR)/%: $(OBJDIR)/%.o
	-@$(MKDIRS) $(dir $@)
	$(CXX) $^ $(CXXFLAGS) $(LDLIBS) -o $@

$(OBJDIR)/%.o: $(SRCDIR)/%.cpp
	-@$(MKDIRS) $(dir $@)
	$(CXX) $(CXXFLAGS) -I$(INCDIR) -c $^ -o $@

.PHONY: all check clean

test: $(TARGET_BIN)
	./$(BINDIR)/test
	./$(BINDIR)/test-fft
	./$(BINDIR)/test-fmm
	./$(BINDIR)/test-ode-solver
	./$(BINDIR)/test-pt-tree
	./$(BINDIR)/test-sph-harm
	./$(BINDIR)/test-vec

clean:
	$(RM) -r $(BINDIR)/* $(OBJDIR)/*
	$(RM) *~ */*~ */*/*~