How include Curl Library on Eclipse

See more:

C++

I have curl installed in my linux Ubuntu. I tested it from terminal and it is ok. Now I want to include in my Eclipse project. I just wrote /usr/local/curl-7.21.7/lib in GCC C++ Linker under Library Search Path (-L). What else should I do? I am getting the message "undefined reference to `curl_easy_init'" to teste the below code.

#include 
#include 
int main(void)
{
  CURL *curl;
  CURLcode res;
  curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "http://www.google.com");
    res = curl_easy_perform(curl);
    /* always cleanup */
    curl_easy_cleanup(curl);
  }
  return 0;
}