F95 = gfortran
FFLAGS = -O
GNUPLOT = gnuplot

%.o: %.f95
	$(F95) $(FFLAGS) -c $*.f95

objfiles = matrix.o rk.o pc.o main.o

all: out.txt plot

out.txt: main
	./main > out.txt
	cat out.txt

main: $(objfiles) makefile
	$(F95) $(objfiles) -o main

plot:
	$(GNUPLOT) rk.gnuplot

clean:
	rm -f $(objfiles) core* main *.mod *.dat *.png *~