Rework build system

src/Makefile

@@ -1,18 +1,32 @@
 
+BIN_DIR=../bin
 SRCS   = ip_to_geo.c test.c cmdline.c server.c
-TARGET = ip_to_geo
-CFLAGS = -Wall -lpthread -ggdb -O0
+TARGET = $(BIN_DIR)/ip_to_geo
+CFLAGS = -Wall
+LDFLAGS= -lpthread
 
-all: $(TARGET)
+ifneq ($(DEBUG),)
+CFLAGS += -ggdb -O0
+else
+CFLAGS += -O2
+endif
+
+all: $(BIN_DIR) ip_data.c $(TARGET)
+
+$(BIN_DIR):
+	@mkdir $(BIN_DIR)
 
 ip_data.c:
-	../data/get_prefixs.sh
+	make -C ../data
 
 cmdline.c: cmdline.ggo
 	gengetopt --input $^
 
 $(TARGET): $(SRCS)
-	gcc $(CFLAGS) $^ -o $@
+	gcc $(CFLAGS) $^ $(LDFLAGS) -o $@
 
 clean:
 	rm -f *~ $(TARGET)
+
+ultra_clean: clean
+	rm -f ip_data.c