Subject: Add relevant socket.h definitions

* Discussed upstream:
* http://www.zytor.com/pipermail/klibc/2010-February/002487.html
* http://www.zytor.com/pipermail/klibc/2010-February/002488.html
*
* Was: Add guards for pre 2.6.33 compatibility.
*
* Changes for 1.5.24
* Only include linux/sockios.h for SIOCGIFCONF and SIOCSIFFLAGS
* requested by kexec-tools when building statically against klibc.

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>

Index: klibc-1.5.24/usr/include/sys/socket.h
===================================================================
--- a/usr/include/sys/socket.h	2011-07-27 15:50:53.000000000 +0200
+++ b/usr/include/sys/socket.h	2010-05-31 00:44:16.000000000 +0200
@@ -10,6 +10,12 @@
 #include <klibc/compiler.h>
 #include <klibc/sysconfig.h>
 #include <linux/socket.h>
+
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)
+#include <linux/sockios.h>		/* the SIOCxxx I/O controls     */
+#endif
+
 #include <linux/uio.h>
 #include <asm/socket.h>
 #if _KLIBC_HAS_ARCHSOCKET_H