# installation prefix; executables are installed in $(PREFIX)/bin
PREFIX = $(HOME)

# test for ccache
CCACHE = $(shell which ccache 2>/dev/null)

ifneq ($(CCACHE),)
CC = ccache gcc
FC = gfortran
else
CC = gcc
FC = gfortran
endif

# test for architecture
UNAME = $(shell uname)

ifeq ($(UNAME),Linux)
CFLAGS = -Wall -O3
LIBFLAGS = -lgsl -lgslcblas -lm
FFLAGS = -O3
else
ifeq ($(UNAME),Darwin)

# Test if gsl and getopt are installed via darwin ports or fink
FINK_DIR = /sw
DARWIN_DIR = /opt/local

ifeq ($(wildcard $(FINK_DIR)/include/gsl/gsl_sys.h), )
ifeq ($(wildcard $(DARWIN_DIR)/include/gsl/gsl_sys.h), )
$(error "Cannot find GSL headers!")
else
GSL_INCLUDE = $(DARWIN_DIR)/include
GSL_LIB = $(DARWIN_DIR)/lib
endif
else
GSL_INCLUDE = $(FINK_DIR)/include
GSL_LIB = $(FINK_DIR)/lib
endif
ifeq ($(wildcard $(FINK_DIR)/include/gnugetopt/getopt.h), )
ifeq ($(wildcard $(DARWIN_DIR)/include/gnugetopt/getopt.h), )
$(error "Cannot find GNU getopt headers!")
else
GETOPT_INCLUDE = $(DARWIN_DIR)/include/gnugetopt
GETOPT_LIB = $(DARWIN_DIR)/lib
endif
else
GETOPT_INCLUDE = $(FINK_DIR)/include/gnugetopt
GETOPT_LIB = $(FINK_DIR)/lib
endif

CFLAGS = -Wall -O3 -m32 -I$(GETOPT_INCLUDE) -I$(GSL_INCLUDE) -L$(GETOPT_LIB) -L$(GSL_LIB)
LIBFLAGS = -lgsl -lgslcblas -lgnugetopt -lm
FFLAGS = -O3 -m32

else
CFLAGS = -Wall -O3
LIBFLAGS = -lgsl -lgslcblas -lm
FFLAGS = -O3
endif
endif

# the core fewbody objects
FEWBODY_OBJS = ../fewbody.o ../fewbody_classify.o ../fewbody_coll.o ../fewbody_hier.o \
	../fewbody_int.o ../fewbody_io.o ../fewbody_isolate.o ../fewbody_ks.o \
	../fewbody_nonks.o ../fewbody_scat.o ../fewbody_utils.o ../fewbody_ui.o 

all: simple

simple: simple.o $(FEWBODY_OBJS)
	$(CC) $(CFLAGS) $^ -o $@ $(LIBFLAGS)

simple.o: simple.c ../fewbody.h Makefile
	$(CC) $(CFLAGS) -c $< -o $@

../%.o: ../%.c ../fewbody.h Makefile
	$(CC) $(CFLAGS) -c $< -o $@

clean:
	rm -f $(FEWBODY_OBJS) simple.o simple

mrproper: clean
	rm -f *~ *.bak *.dat ChangeLog
	rm -f */*~ */*.bak */*.dat