Unknown option: "-3" Unix manual page for CURLOPT_SOCKS5_GSSAPI_NEC. (host=minya system=Darwin)
CURLOPT_SOCKS5_GSSAPI_NEC(3curl_easy_setopt optionCURLOPT_SOCKS5_GSSAPI_NEC(3)

NAME
       CURLOPT_SOCKS5_GSSAPI_NEC  - set socks proxy gssapi negotiation protec-
       tion

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SOCKS5_GSSAPI_NEC, long
       nec);

DESCRIPTION
       Pass  a  long set to 1 to enable or 0 to disable. As part of the gssapi
       negotiation a protection mode is negotiated. The RFC1961 says  in  sec-
       tion  4.3/4.4 it should be protected, but the NEC reference implementa-
       tion does not.  If enabled, this option allows the unprotected exchange
       of the protection mode negotiation.

DEFAULT
       ?

PROTOCOLS
       Most

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.19.4

RETURN VALUE
       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
       if not.

SEE ALSO
       CURLOPT_SOCKS5_GSSAPI_SERVICE(3), CURLOPT_PROXY(3),

libcurl 7.54.0                 February 03, 2016  CURLOPT_SOCKS5_GSSAPI_NEC(3)