PROG = html
all: ${PROG} run
${PROG}.tab.c: ${PROG}.y
bison -Wcounterexamples -d ${PROG}.y
lex.yy.c: ${PROG}lex.l
flex ${PROG}lex.l
${PROG}: ${PROG}.tab.c lex.yy.c
gcc -o ${PROG} ${PROG}.tab.c lex.yy.c -lfl
run: ${PROG}
echo
cat test_${PROG}_2
echo
./${PROG}