Fix missing libraries

Makefile

@@ -1,7 +1,7 @@
 # Compiler and flags
 CC = gcc
 CFLAGS = -Wall -g
-LIBS = -lncurses
+LIBS = -lncurses -lm
 
 # Source files
 NETPONG_SRC = main.c $(wildcard src/*.c) $(wildcard src/network/*.c)

src/network/networking.c

@@ -5,6 +5,7 @@
 #include <unistd.h>
 #include <arpa/inet.h>
 #include <netdb.h>
+#include <signal.h>
 
 
 static Server *g_server = NULL;