--- screen-4.3.1/socket.c.~1~ 2015-09-28 13:59:32.049275138 -0700

+++ screen-4.3.1/socket.c 2015-09-28 13:59:47.162984046 -0700

@@ -30,6 +30,9 @@

#include <sys/types.h>

#include <sys/stat.h>

#include <fcntl.h>

+

+#define _XPG4_2

+

#if !defined(NAMEDPIPE)

# include <sys/socket.h>

# ifdef _OpenBSD_