#
# Makefile for assignment 2 of the Compiler Construction course.
# Fall 2007, LIACS, Leiden University.
#

CC		= g++
LEX		= flex
YACC		= bison --yacc

WARNINGS	= -Wall -ansi
OTHERS		= -m32 -g
DEFINES		= -DDEBUG
IDIRS		= -I.

CFLAGS		= $(WARNINGS) $(OTHERS) $(DEFINES) $(IDIRS)
LFLAGS		=
YFLAGS		= --defines --debug --verbose
LDFLAGS		= -m32 -g
LOADLIBS	= -lfl -lm

#
# If you want to add another C/C++ file to the compiler, add the name of the
# corresponding .o file to the OBJFILES macro below:
#
OBJFILES	= debug.o messages.o coercion.o lookup.o
OBJDIR		= gen/
OBJS		  = $(addprefix $(OBJDIR),$(OBJFILES))

# Precompiled object files
POBJFILES = types.o SyntaxTree.o Node.o Symbol.o SymbolTable.o Scope.o
POBJDIR   = obj/
POBJS     = $(addprefix $(POBJDIR),$(POBJFILES))

IMPORTANT	= comp.[hly] *.h *.c *.cc \
		  Makefile

.PHONY: all first clean backup dirs showdeps

all: comp

# To be executed before the very first build
first: dirs

# Dependency stuff
comp: $(OBJDIR)y.tab.o $(OBJDIR)lex.yy.o $(OBJS) $(POBJS)
	$(CC) $(LDFLAGS) -o $@ $^ $(LOADLIBS)

$(OBJDIR)y.tab.h $(OBJDIR)y.tab.c: comp.y
	$(YACC) $(YFLAGS) $< -o $(OBJDIR)y.tab.c

$(OBJDIR)lex.yy.c: comp.l
	$(LEX) $(LFLAGS) -o$@ $<

clean:
	rm -f $(OBJDIR){lex.yy.c,y.tab.*,y.output,*.o} *~ comp \
	    `find . -name core -o -name \*\.bak`

backup:
	tar cfz ../CoCo-`date +'%y%m%d-%H%M'`.tar.gz $(IMPORTANT)

dirs:
	mkdir gen

# Show dependencies between .c files
showdeps:
	$(CC) -MM *.c *.cc

# Dependency stuff
$(OBJDIR)lex.yy.o: $(OBJDIR)lex.yy.c $(OBJDIR)y.tab.h
$(OBJDIR)y.tab.o: $(OBJDIR)y.tab.c

$(OBJDIR)%.o: %.c
	$(CC) $(CFLAGS) -c -o $@ $<

$(OBJDIR)%.o: %.cc
	$(CC) $(CFLAGS) -c -o $@ $<