# /codes/multifile/Makefile4

FC = gfortran
BUILD ?= debug
fflags.debug = -g
fflags.release = -O3
FFLAGS = ${fflags.${BUILD}}
LFLAGS =

OBJECTS = main.o sub1.o sub2.o

output.txt: main.ex
	./main.ex > output.txt

main.ex: $(OBJECTS)
	$(FC) $(LFLAGS) -o main.ex $(OBJECTS)

%.o : %.f90
	$(FC) -c $(FFLAGS) $<