- Constantine Sapuntzakis fixed bug report #2784055

(http://curl.haxx.se/bug/view.cgi?id=2784055) identifying a problem to
  connect to SOCKS proxies when using the multi interface. It turned out to
  almost not work at all previously. We need to wait for the TCP connect to
  be properly verified before doing the SOCKS magic.

  There's still a flaw in the FTP code for this.

lib/url.h

@@ -85,4 +85,6 @@ void Curl_reset_reqproto(struct connectdata *conn);
 #define CURL_DEFAULT_PROXY_PORT 1080 /* default proxy port unless specified */
 #define CURL_DEFAULT_SOCKS5_GSSAPI_SERVICE "rcmd" /* default socks5 gssapi service */
 
+CURLcode Curl_connected_proxy(struct connectdata *conn);
+
 #endif