ifeq ($(shell uname -s),Darwin)
	AFLAGS += -fmacho64
	LDFLAGS += -lSystem
	LD = clang
	AS = nasm
endif
ifeq ($(shell uname -s),Linux)
	AFLAGS += -felf64
	LD = ld
	AS = nasm
endif

OUT_BIN=build

.PHONY: clean $(OUT_BIN)

default: clean $(OUT_BIN)

$(OUT_BIN): main.o
	$(LD) $(LDFLAGS) -o $@ $^

%.o: %.asm
	$(AS) $(AFLAGS) $< -o $@

clean:
	-rm *.o $(OUT_BIN)