From 22f013a06f6015ab7601329a632001770cd14941 Mon Sep 17 00:00:00 2001
From: Peter Powell <petpow@saberuk.com>
Date: Sun, 7 Jul 2013 14:27:54 +0100
Subject: Use the preprocessor to check for TCP deferring support.

---
 configure                      | 17 -----------------
 make/test/so_acceptfilter.cpp  | 27 ---------------------------
 make/test/tcp_defer_accept.cpp | 27 ---------------------------
 src/listensocket.cpp           |  7 ++-----
 4 files changed, 2 insertions(+), 76 deletions(-)
 delete mode 100644 make/test/so_acceptfilter.cpp
 delete mode 100644 make/test/tcp_defer_accept.cpp

diff --git a/configure b/configure
index 19b4e7c26..4bb808f9e 100755
--- a/configure
+++ b/configure
@@ -298,18 +298,6 @@ if (test_file($config{CXX}, "eventfd.cpp")) {
 	print "no\n";
 }
 
-printf "Checking if a TCP deferring mechanism is available... ";
-if (test_file($config{CXX}, "tcp_defer_accept.cpp")) {
-	$config{HAS_DEFER} = "TCP_DEFER_ACCEPT";
-	print "yes (TCP_DEFER_ACCEPT)\n";
-} elsif (test_file($config{CXX}, "so_acceptfilter.cpp")) {
-	$config{HAS_DEFER} = "SO_ACCEPTFILTER";
-	print "yes (SO_ACCEPTFILTER)\n";
-} else {
-	$config{HAS_DEFER} = "false";
-	print "no\n";
-}
-
 print "Checking whether epoll is available... ";
 $config{HAS_EPOLL} = test_header($config{CXX}, "sys/epoll.h");
 print $config{HAS_EPOLL} ? "yes\n" : "no\n";
@@ -791,11 +779,6 @@ EOF
 		if ($config{HAS_CLOCK_GETTIME} eq 'true') {
 			print FILEHANDLE "#define HAS_CLOCK_GETTIME\n";
 		}
-		if ($config{HAS_DEFER} eq "TCP_DEFER_ACCEPT") {
-			print FILEHANDLE "#define USE_TCP_DEFER_ACCEPT\n";
-		} elsif ($config{HAS_DEFER} eq "SO_ACCEPTFILTER") {
-			print FILEHANDLE "#define USE_SO_ACCEPTFILTER\n"
-		}
 
 		print FILEHANDLE "\n#include \"threadengines/threadengine_pthread.h\"\n";
 		close(FILEHANDLE);
diff --git a/make/test/so_acceptfilter.cpp b/make/test/so_acceptfilter.cpp
deleted file mode 100644
index 0fd4cda4f..000000000
--- a/make/test/so_acceptfilter.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * InspIRCd -- Internet Relay Chat Daemon
- *
- *
- * This file is part of InspIRCd.  InspIRCd is free software: you can
- * redistribute it and/or modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <sys/socket.h>
-
-#ifndef SO_ACCEPTFILTER
-	#error
-#endif
-
-int main()
-{
-	return 0;
-}
diff --git a/make/test/tcp_defer_accept.cpp b/make/test/tcp_defer_accept.cpp
deleted file mode 100644
index 191b1ac70..000000000
--- a/make/test/tcp_defer_accept.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * InspIRCd -- Internet Relay Chat Daemon
- *
- *
- * This file is part of InspIRCd.  InspIRCd is free software: you can
- * redistribute it and/or modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <netinet/tcp.h>
-
-#ifndef TCP_DEFER_ACCEPT
-	#error
-#endif
-
-int main()
-{
-	return 0;
-}
diff --git a/src/listensocket.cpp b/src/listensocket.cpp
index 20cbe51ac..9b69b53ff 100644
--- a/src/listensocket.cpp
+++ b/src/listensocket.cpp
@@ -21,10 +21,7 @@
 #include "inspircd.h"
 #include "socket.h"
 #include "socketengine.h"
-
-#ifdef USE_TCP_DEFER_ACCEPT
 #include <netinet/tcp.h>
-#endif
 
 ListenSocket::ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_to)
 	: bind_tag(tag)
@@ -63,9 +60,9 @@ ListenSocket::ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_t
 	int timeout = tag->getInt("defer", 0);
 	if (timeout && !rv)
 	{
-#ifdef USE_TCP_DEFER_ACCEPT
+#if defined TCP_DEFER_ACCEPT
 		setsockopt(fd, IPPROTO_TCP, TCP_DEFER_ACCEPT, &timeout, sizeof(timeout));
-#elif defined USE_SO_ACCEPTFILTER
+#elif defined SO_ACCEPTFILTER
 		struct accept_filter_arg afa;
 		memset(&afa, 0, sizeof(afa));
 		strcpy(afa.af_name, "dataready");
-- 
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