#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
-#ifdef HAVE_SYS_SOCKET_H
+#ifdef _WIN32
+# include <winsock23.h>
+# define SOCKET_AVAIL
+#elif defined HAVE_SYS_SOCKET_H
# include <sys/socket.h>
# include <netinet/in.h>
# include <arpa/inet.h>