DEBUG?= -g
CFLAGS?= -O2 -Wall -W
CCOPT= $(CFLAGS)

OBJ = main.o skiplist.o x.o
PRGNAME = sl

all: sl

main.o: x.h skiplist.h x.c skiplist.c main.c
x.o: x.c x.h
skiplist.o: x.c x.h skiplist.c skiplist.h 

sl: $(OBJ)
	$(CC) -o $(PRGNAME) $(CCOPT) $(DEBUG) $(OBJ)

.c.o:
	$(CC) -c $(CCOPT) $(DEBUG) $(COMPILE_TIME) $<

clean:
	rm -rf $(PRGNAME) *.o

dep:
	$(CC) -MM *.c