REGISTER_CURL_CONSTANT(CURLOPT_SSLENGINE);
REGISTER_CURL_CONSTANT(CURLOPT_SSLENGINE_DEFAULT);
REGISTER_CURL_CONSTANT(CURLOPT_CRLF);
-#ifdef CURLOPT_ENCODING
+#if LIBCURL_VERSION_NUM >= 0x070a00
REGISTER_CURL_CONSTANT(CURLOPT_ENCODING);
#endif
case CURLOPT_SSLKEYTYPE:
case CURLOPT_SSLKEYPASSWD:
case CURLOPT_SSLENGINE:
-#ifdef CURLOPT_ENCODING
+#if LIBCURL_VERSION_NUM >= 0x070a00
case CURLOPT_ENCODING:
#endif
case CURLOPT_SSLENGINE_DEFAULT: {