makefile

#declaring variables. accessed with $ sign in later use.
#CC will be the compiler I am using. CFLAGS are  compiler flags.
#YACCFLAGS are yacc flags.
CC = g++
CFLAGS = -c -Wall
PARGEN = bison
LEXPARGENFLAGS = -d
LEXER = flex


.PHONY : clean
clean:
		rm lex.yy.o y.tab.o lex.yy.c y.tab.c y.tab.h a.out

.PHONY : build run
build:
		$(PARGEN) $(PARGENFLAGS) pl0yacc.ypp
		$(LEXER) pl0Lex.l
		$(CC) $(CFLAGS) -lfl lex.yy.c pl0yacc.tab.cpp
		$(CC) lex.yy.o pl0yacc.tab.o -o a.out

run: build
	./a.out<testInput