Add dependency (which is required here to ws2tcpip.h


git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@3330 4407c894-4637-0410-b4f5-ada5f102cad1
diff --git a/mingw-w64-headers/include/ws2ipdef.h b/mingw-w64-headers/include/ws2ipdef.h
index a71bbb6..ae1c8de 100644
--- a/mingw-w64-headers/include/ws2ipdef.h
+++ b/mingw-w64-headers/include/ws2ipdef.h
@@ -6,6 +6,9 @@
 #ifndef _INC_WS2IPDEF
 #define _INC_WS2IPDEF
 
+/* Make sure we included it for PSOCKADDR_IN6, ... */
+#include <ws2tcpip.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif