* sofia-sip/su.h: do not try to use "IPv6 tech preview" with XP
Fix proposed by Filippo Della Betta.
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10809
d0543943-73ff-0310-b7d9-
9358b9ac24b2
# include <winsock2.h>
# include <ws2tcpip.h>
# if SU_HAVE_IN6
-# if defined(IPPROTO_IPV6) || (_WIN32_WINNT >= 0x0600)
+# if defined(IPPROTO_IPV6) || (_WIN32_WINNT >= 0x0501)
/* case 1: IPv6 defined in winsock2.h/ws2tcpip.h */
# else
/* case 2: try to use "IPv6 Tech Preview" */
-# include <tpipv6.h>
+# include <tpipv6.h>
# endif
# endif
#endif