From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jesse Buhagiar <jooster669@gmail.com>
Date: Fri, 25 Mar 2022 09:40:41 +1100
Subject: [PATCH] Engine: Add `<sys/select.h>` include for Serenity

QuakeIII makes extensive use of the `select()` syscall for its' netcode.
It seems that Linux has this in a header that isn't `<sys/select.h>`
like us, which results in an implicit declaration error.
---
 code/qcommon/net_ip.c | 7 +++++++
 code/sys/con_tty.c    | 4 ++++
 code/sys/sys_unix.c   | 4 ++++
 3 files changed, 15 insertions(+)

diff --git a/code/qcommon/net_ip.c b/code/qcommon/net_ip.c
index bcccda2..ea940f5 100644
--- a/code/qcommon/net_ip.c
+++ b/code/qcommon/net_ip.c
@@ -81,6 +81,10 @@ static qboolean	winsockInitialized = qfalse;
 #		include <sys/filio.h>
 #	endif
 
+#ifdef __serenity__
+#include <sys/select.h>
+#endif
+
 typedef int SOCKET;
 #	define INVALID_SOCKET		-1
 #	define SOCKET_ERROR			-1
@@ -996,6 +1000,7 @@ NET_JoinMulticast
 Join an ipv6 multicast group
 ====================
 */
+#ifndef __serenity__
 void NET_JoinMulticast6(void)
 {
 	int err;
@@ -1059,6 +1064,8 @@ void NET_LeaveMulticast6()
 	}
 }
 
+#endif
+
 /*
 ====================
 NET_OpenSocks
diff --git a/code/sys/con_tty.c b/code/sys/con_tty.c
index 58f178a..74e1c60 100644
--- a/code/sys/con_tty.c
+++ b/code/sys/con_tty.c
@@ -34,6 +34,10 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include <fcntl.h>
 #include <sys/time.h>
 
+#ifdef __serenity__
+#include <sys/select.h>
+#endif
+
 /*
 =============================================================
 tty console routines
diff --git a/code/sys/sys_unix.c b/code/sys/sys_unix.c
index e0c6323..05f311b 100644
--- a/code/sys/sys_unix.c
+++ b/code/sys/sys_unix.c
@@ -39,6 +39,10 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include <fenv.h>
 #include <sys/wait.h>
 
+#ifdef __serenity__
+#include <sys/select.h>
+#endif
+
 qboolean stdinIsATTY;
 
 // Used to determine where to store user-specific files