--- _CVS_cURL_orig_jan/curl/lib/urldata.h	2007-12-03 00:38:24.000000000 +0100
+++ _CVS_cURL_modif_jan/curl/lib/urldata.h	2008-01-02 15:14:32.000000000 +0100
@@ -1428,6 +1428,9 @@
   bool no_signal;        /* do not use any signal/alarm handler */
   bool global_dns_cache; /* subject for future removal */
   bool tcp_nodelay;      /* whether to enable TCP_NODELAY or not */
+  long tcp_keepcnt;      /* maximum number of keepalive probes */
+  long tcp_keepidle;     /* time before sending keepalive probes */
+  long tcp_keepintvl;    /* time between individual keepalive probes */
   bool ignorecl;         /* ignore content length */
   bool ftp_skip_ip;      /* skip the IP address the FTP server passes on to
                             us */