* ext/socket/extconf.rb: enable ipv6 support for win32.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Wed Jul 22 17:29:59 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* ext/socket/extconf.rb: enable ipv6 support for win32.
+
 Wed Jul 22 16:38:39 2009  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
 
 	* hash.c (Hash::[]): rdoc. patch by Marc-Andre Lafortune.

ext/socket/extconf.rb

@@ -37,7 +37,9 @@ default_ipv6 = /cygwin|beos|haiku/ !~ RUBY_PLATFORM
 if enable_config("ipv6", default_ipv6)
   if checking_for("ipv6") {try_link(<<EOF)}
 #include <sys/types.h>
+#ifndef _WIN32
 #include <sys/socket.h>
+#endif
 int
 main()
 {