CC	   	 		=	gcc
OPTS   	 		=	-Wall -Wextra -pedantic -std=c99
FIN	   	 		=	rf.c
FOUT			=	rf
PREFIX			?= /usr
DESTDIR			?= 

.PHONY: all run install clean

all:
	$(CC) $(OPTS) $(FIN) -o $(FOUT)

run: all
	./$(FOUT)

install: all
	sudo install -Dm755 $(FOUT) $(DESTDIR)$(PREFIX)/bin/$(FOUT)
	$(MAKE) clean

clean:
	rm -v $(FOUT)