+#if PHP_HTTP_CURL_VERSION(7,54,0)
+ REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "SSL_VERSION_MAX_DEFAULT", CURL_SSLVERSION_MAX_DEFAULT, CONST_CS|CONST_PERSISTENT);
+ REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "SSL_VERSION_MAX_TLSv1_0", CURL_SSLVERSION_MAX_TLSv1_0, CONST_CS|CONST_PERSISTENT);
+ REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "SSL_VERSION_MAX_TLSv1_1", CURL_SSLVERSION_MAX_TLSv1_1, CONST_CS|CONST_PERSISTENT);
+ REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "SSL_VERSION_MAX_TLSv1_2", CURL_SSLVERSION_MAX_TLSv1_2, CONST_CS|CONST_PERSISTENT);
+ REGISTER_NS_LONG_CONSTANT("http\\Client\\Curl", "SSL_VERSION_MAX_TLSv1_3", CURL_SSLVERSION_MAX_TLSv1_3, CONST_CS|CONST_PERSISTENT);
+#endif
+