Fail to compile under linux 2.6.32, curl 7.12. about go-curl

[andelf]

must support curl 7.12.

[andelf]

http://curl.haxx.se/libcurl/c/symbols-in-versions.html

[andelf]

# github.com/andelf/go-curl/curl
1: error: 'CURLINFO_CONDITION_UNMET' undeclared (first use in this function)
1: note: each undeclared identifier is reported only once for each function it appears in
1: error: 'CURLMOPT_SOCKETFUNCTION' undeclared (first use in this function)
1: error: 'CURLFTP_CREATE_DIR' undeclared (first use in this function)
1: error: 'CURLVERSION_FOURTH' undeclared (first use in this function)
1: error: 'CURLINFO_CERTINFO' undeclared (first use in this function)
1: error: 'CURLPROXY_HTTP_1_0' undeclared (first use in this function)
1: error: 'CURLPROXY_SOCKS4A' undeclared (first use in this function)
1: error: 'CURLINFO_FTP_ENTRY_PATH' undeclared (first use in this function)
1: error: 'CURLM_BAD_SOCKET' undeclared (first use in this function)
1: error: 'CURLFTP_CREATE_DIR_RETRY' undeclared (first use in this function)
1: error: 'CURLPROXY_SOCKS5_HOSTNAME' undeclared (first use in this function)
1: error: 'CURLMOPT_TIMERDATA' undeclared (first use in this function)
1: error: 'CURLINFO_RTSP_CLIENT_CSEQ' undeclared (first use in this function)
1: error: 'CURLINFO_APPCONNECT_TIME' undeclared (first use in this function)
1: error: 'CURLFTP_CREATE_DIR_NONE' undeclared (first use in this function)
1: error: 'CURLINFO_REDIRECT_URL' undeclared (first use in this function)
1: error: 'CURLINFO_RTSP_SESSION_ID' undeclared (first use in this function)
1: error: 'CURLINFO_SSL_ENGINES' undeclared (first use in this function)
1: error: 'CURLINFO_RTSP_SERVER_CSEQ' undeclared (first use in this function)
1: error: 'CURLINFO_LASTSOCKET' undeclared (first use in this function)
1: error: 'CURLINFO_NUM_CONNECTS' undeclared (first use in this function)
1: error: 'CURLINFO_RTSP_CSEQ_RECV' undeclared (first use in this function)
1: error: 'CURLM_UNKNOWN_OPTION' undeclared (first use in this function)
1: error: 'CURLINFO_OS_ERRNO' undeclared (first use in this function)
1: error: 'CURLINFO_COOKIELIST' undeclared (first use in this function)
1: error: 'CURLINFO_LOCAL_PORT' undeclared (first use in this function)
1: error: 'CURLINFO_LOCAL_IP' undeclared (first use in this function)
1: error: 'CURLMOPT_MAXCONNECTS' undeclared (first use in this function)
1: error: 'CURLMOPT_PIPELINING' undeclared (first use in this function)
1: error: 'CURLMOPT_TIMERFUNCTION' undeclared (first use in this function)
1: error: 'CURLINFO_PRIMARY_PORT' undeclared (first use in this function)
1: error: 'CURLINFO_PRIMARY_IP' undeclared (first use in this function)
1: error: 'CURLMOPT_SOCKETDATA' undeclared (first use in this function)

[andelf]

# github.com/andelf/go-curl/curl
1: error: 'curl_easy_send' undeclared (first use in this function)
1: note: each undeclared identifier is reported only once for each function it appears in
1: error: 'curl_easy_escape' undeclared (first use in this function)
1: error: 'CURLINFO_SLIST' undeclared (first use in this function)
1: error: 'curl_easy_recv' undeclared (first use in this function)
1: error: 'curl_easy_unescape' undeclared (first use in this function)
1: error: 'curl_easy_pause' undeclared (first use in this function)

[andelf]

# github.com/andelf/go-curl/curl
1: error: 'curl_easy_recv' undeclared (first use in this function)
1: note: each undeclared identifier is reported only once for each function it appears in
1: error: 'curl_easy_unescape' undeclared (first use in this function)
1: error: 'curl_easy_pause' undeclared (first use in this function)
1: error: 'curl_easy_send' undeclared (first use in this function)
1: error: 'curl_easy_escape' undeclared (first use in this function)

may need to wrap these functions~