Someone

NAME    =       test

CC      =       cc

SRCS    =       test.c my_putchar.c

OBJS    =       $(SRCS:.c=.o)

RM      =       rm -rf

all:    $(OBJS)
        $(CC) -o $(NAME) $(OBJS)

clean:  $(OBJS)
        $(RM) $(OBJS)