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

NAME
       CURLMOPT_PUSHDATA - pointer to pass to push callback

SYNOPSIS
       #include <curl/curl.h>

       CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_PUSHDATA, void *pointer);

DESCRIPTION
       Set  pointer  to  pass  as  the last argument to the CURLMOPT_PUSHFUNC-
       TION(3) callback. The pointer will not be touched or  used  by  libcurl
       itself, only passed on to the callback function.

DEFAULT
       NULL

PROTOCOLS
       HTTP(S)

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.44.0

RETURN VALUE
       Returns  CURLM_OK  if the option is supported, and CURLM_UNKNOWN_OPTION
       if not.

SEE ALSO
       CURLMOPT_PUSHFUNCTION(3), CURLMOPT_PIPELINING(3),  CURLOPT_PIPEWAIT(3),
       RFC7540

libcurl 7.54.0                 February 03, 2016          CURLMOPT_PUSHDATA(3)