+#if LIBCURL_VERSION_NUM < 0x070704
+#define curl_global_cleanup() do { /* nothing */ } while(0)
+#endif
+#if LIBCURL_VERSION_NUM < 0x070800
+#define curl_global_init(a) do { /* nothing */ } while(0)
+#endif
+#if LIBCURL_VERSION_NUM < 0x070907
+#define curl_easy_setopt(a, b, c) do { /* nothing */ } while(0)
+#endif
+