- Added a type checking macro for curl_easy_setopt(), needs gcc-4.3 and only

works in C mode atm (http://curl.haxx.se/mail/lib-2008-02/0267.html ,
  http://curl.haxx.se/mail/lib-2008-02/0292.html )

lib/easy.c

@@ -348,6 +348,7 @@ CURL *curl_easy_init(void)
  * easy handle.
  */
 
+#undef curl_easy_setopt
 CURLcode curl_easy_setopt(CURL *curl, CURLoption tag, ...)
 {
   va_list arg;