LEXFILE = lex_simple.l
YACCFILE = yacc_ex_1.y
YACCOPTS = -v

test: y.tab.o lex.yy.o
	cc -o test y.tab.o lex.yy.o -ly -ll

lex.yy.o: lex.yy.c

lex.yy.c: ${LEXFILE}
	lex ${LEXFILE}

y.tab.o: y.tab.c

y.tab.c: ${YACCFILE}
	yacc ${YACCOPTS} ${YACCFILE}