old curl fix

libs/http_client/pihttpclient.cpp

@@ -7,6 +7,10 @@
 
 #include <curl/curl.h>
 
+#if !defined(CURL_WRITEFUNC_ERROR)
+#  define CURL_WRITEFUNC_ERROR 0xFFFFFFFF
+#endif
+
 
 int xfer_callback(void * ptr, curl_off_t dltotal, curl_off_t dlnow, curl_off_t ultotal, curl_off_t ulnow) {
 	return reinterpret_cast<PIHTTPClientBase *>(ptr)->__infoFunc(dltotal, dlnow, ultotal, ulnow);