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

NAME
       CURLOPT_PROXYTYPE - proxy protocol type

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXYTYPE, long type);

DESCRIPTION
       Pass one of the values below to set the type of the proxy.

              CURLPROXY_HTTP
                     HTTP Proxy. Default.

              CURLPROXY_HTTPS
                     HTTPS  Proxy.  (Added  in  7.52.0 for OpenSSL, GnuTLS and
                     NSS)

              CURLPROXY_HTTP_1_0
                     HTTP 1.0 Proxy. This is very  similar  to  CURLPROXY_HTTP
                     except  it  uses  HTTP/1.0 for any CONNECT tunnelling. It
                     does not change the  HTTP  version  of  the  actual  HTTP
                     requests, controlled by CURLOPT_HTTP_VERSION(3).

              CURLPROXY_SOCKS4
                     SOCKS4 Proxy.

              CURLPROXY_SOCKS4A
                     SOCKS4a Proxy. Proxy resolves URL hostname.

              CURLPROXY_SOCKS5
                     SOCKS5 Proxy.

              CURLPROXY_SOCKS5_HOSTNAME
                     SOCKS5 Proxy. Proxy resolves URL hostname.

       Often  it  is more convenient to specify the proxy type with the scheme
       part of the CURLOPT_PROXY(3) string.

DEFAULT
       CURLPROXY_HTTP

PROTOCOLS
       Most

EXAMPLE
       TODO

AVAILABILITY
       Always

RETURN VALUE
       Returns CURLE_OK

SEE ALSO
       CURLOPT_PROXY(3), CURLOPT_PROXYPORT(3),

libcurl 7.54.0                 February 06, 2017          CURLOPT_PROXYTYPE(3)