# /codes/multifile/Makefile7

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

SOURCES = $(wildcard *.f90)  
OBJECTS = $(subst .f90,.o,$(SOURCES))

.PHONY: clean

output.txt: main.ex
	@echo BUILD=${BUILD}
	./main.ex > output.txt

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

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

clean:
	rm -f main.ex $(OBJECTS)