build size optimizations

server/Makefile

@@ -1,12 +1,15 @@
 CC = gcc
 
 INCLUDE := include
-CFLAGS = -Wall -I$(INCLUDE) -g
+CFLAGS = -Wall -I$(INCLUDE) -Os -ffunction-sections -fdata-sections -Wl,--gc-sections
 
 BUILD_DIR := build
 
 all: server
 
+debug: CFLAGS += -g
+debug: server
+
 server: $(BUILD_DIR)/server.o $(BUILD_DIR)/mongoose.o $(BUILD_DIR)/array.o
 	$(CC) $(CFLAGS) -o $(BUILD_DIR)/server $(BUILD_DIR)/server.o $(BUILD_DIR)/mongoose.o $(BUILD_DIR)/array.o