--- curl.h	2010-06-05 00:30:00.000000000 +0200
+++ ..\..\..\curl-7.21.1-xware\include\curl\curl.h	2010-09-15 10:19:05.668551800 +0200
@@ -312,6 +312,7 @@
 
 typedef enum  {
   CURLSOCKTYPE_IPCXN, /* socket created for a specific IP connection */
+  CURLSOCKTYPE_FTPDATACXN, /* socket created for FTP data channel */
   CURLSOCKTYPE_LAST   /* never use */
 } curlsocktype;