[gimp] script-fu build fix for Windows

[Tor Lillqvist <tml src gnome org>]

commit 6bfe88ae17f02190145a2d65679db66632143052
Author: Tor Lillqvist <tml iki fi>
Date:   Mon Jul 5 09:59:34 2010 +0300

    script-fu build fix for Windows

 plug-ins/script-fu/script-fu-server.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/plug-ins/script-fu/script-fu-server.c b/plug-ins/script-fu/script-fu-server.c
index c158fa0..5764ffc 100644
--- a/plug-ins/script-fu/script-fu-server.c
+++ b/plug-ins/script-fu/script-fu-server.c
@@ -35,7 +35,15 @@
 #include <glib.h>
 
 #ifdef G_OS_WIN32
+#define _WIN32_WINNT 0x0502
 #include <winsock2.h>
+#include <ws2tcpip.h>
+#ifndef AI_ADDRCONFIG
+/* Missing from mingw headers, but value is publicly documented 
+ * on http://msdn.microsoft.com/en-us/library/ms737530%28v=VS.85%29.aspx
+ */
+#define AI_ADDRCONFIG 0x0400
+#endif
 #include <libgimpbase/gimpwin32-io.h>
 #else
 #include <sys/socket.h>