# ***** this makefile will only work properly with gnu make *****

# it is a very good idea to install makedepend and run "make make"
# NOTE: makedepend often issues lots of warnings with ANSI C++ files
#       but it will put all the dependencies you need at the bottom of this file

# This Makefile links with the X-windows, OpenGL libraries, and Glut library
# These libraries are not needed until p6.  They are included here to
# encourage you to make sure they are properly installed on your system
# early in the semester.

CXX = g++
CPPFLAGS = -Wall -pedantic -g

# uncomment the lines for the machine you are compiling on

# windows/cygwin libraries (comment out if not using windows/cygwin)
#LIBS = -lfl  -lopengl32 -lglut32 -lglu32

# linux/UNIX libraries (comment out next two lines if not using linux/unix)
LIBDIRS  = -L/usr/X11R6/lib
# some linux versions don't need/like the -lX11 and -lglut
#LIBS = -lGL -lGLU -lm -lfl
LIBS = -lX11 -lglut -lGL -lGLU -lm -lfl

# OS X (comment out next two lines if not using OSX)
# LIBS = -framework GLUT -framework OpenGL -lobjc
# OSX = -D OSX

C++SRC = parser.cpp error.cpp gpl_assert.cpp

C++OBJ = parser.o error.o gpl_assert.o

parser: y.tab.o lex.yy.o $(C++OBJ)
	g++ -g -o parser y.tab.o lex.yy.o $(C++OBJ) $(LIBDIRS) $(LIBS)

y.tab.c y.tab.h: expr.y
	bison -vyd expr.y

y.tab.o: y.tab.c 
	$(CXX) $(CPPFLAGS) -c y.tab.c

lex.yy.c: expr.l
	flex expr.l

lex.yy.o: lex.yy.c y.tab.h 
	$(CXX) $(CPPFLAGS) -c lex.yy.c

make:
	makedepend $(C++SRC) y.tab.c lex.yy.c expr.l expr.y
	@echo "************************************************************"
	@echo "************************************************************"
	@echo "************************************************************"
	@echo "It is \"normal\" for makedepend to generate lots of errors"
	@echo "If the errors have to do with ANSI C++ include files, ignore them"
	@echo "************************************************************"

clean:
	rm -f $(C++OBJ) parser lex.yy.c lex.yy.o \
	y.output y.tab.h y.tab.c y.tab.o \
	*.stackdump Makefile.bak

# Makedepend will fill in the correct dependencies at the end of this 
# file when you make "make":   $ make make
# The following lines were (or will be) generated by makedepend
# DO NOT DELETE

error.o: you_have_not_typed_make_make_yet