help for my "makefile"

[sunsail]

below my makefile.and i use cygwin 
is there any problem with this makefile
i use flex and bison

regards


************************************************
CC = gcc -g
SRCS = cross.c mutate.c reprod.c select.c input.c times.c chromo.c \
        init.c screens.c reinit.c tt0.c newprint.c y.tab.c lex.yy.c 
OBJS = cross.o mutate.o reprod.o select.o input.o times.o chromo.o \
        init.o screens.o reinit.o tt0.o newprint.o y.tab.o lex.yy.o

CFLAGS= -g
LDFLAGS= -lcurses -ll  -lm 
LIBS= -lf -lb

gatt:  $(OBJS) gatt.h
        $(CC) -o gatt $(OBJS) $(LDFLAGS)

# leave the following lines in if you have lex/yacc installed
flex.yy.c: main.l gatt.h
        flex main.l

y.tab.c: main.y gatt.h
        bison main.y


# if you do not have lex,yacc comment out above lines and use the following
# commands instead

# flex.yy.o: flex.yy.c gatt.h
#       $(CC) -c $(CFLAGS) flex.yy.c

# y.tab.o: y.tab.c gatt.h
#       $(CC) -c $(CFLAGS) y.tab.c


clean:
        rm -rf *.o lex.yy.c y.tab.* y.output gatt

cross.o: cross.c gatt.h
        $(CC) -c $(CFLAGS) cross.c

mutate.o: mutate.c gatt.h
        $(CC) -c $(CFLAGS) mutate.c

reprod.o: reprod.c gatt.h
        $(CC) -c $(CFLAGS) reprod.c

select.o: select.c gatt.h
        $(CC) -c $(CFLAGS) select.c

reinit.o: reinit.c gatt.h
        $(CC) -c $(CFLAGS) reinit.c

tt0.o : tt0.c tt0.h gatt.h
        $(CC) -c $(CFLAGS) tt0.c

input.o: input.c gatt.h
        $(CC) -c $(CFLAGS) input.c

newprint.o: newprint.c gatt.h 
        $(CC) -c $(CFLAGS) newprint.c

times.o: times.c
        $(CC) -c $(CFLAGS) times.c

chromo.o: chromo.c gatt.h
        $(CC) -c $(CFLAGS) chromo.c

screens.o: screens.c gatt.h
        $(CC) -c $(CFLAGS) screens.c

init.o: init.c gatt.h
        $(CC) -c $(CFLAGS) init.c