Fix build for libcurl < 7.20.0

diff --git a/ext/curl/interface.c b/ext/curl/interface.c
index 49adcd7daf0b060caaf7aae9a03e63694a8dab42..176a7fea929d7965769006e026ec00e1e196121e 100644 (file)
--- a/ext/curl/interface.c
+++ b/ext/curl/interface.c
@@ -2328,9 +2328,11 @@ string_copy:
                                        case CURLOPT_PREQUOTE:
                                                name = "CURLOPT_PREQUOTE";
                                                break;
+#if LIBCURL_VERSION_NUM >= 0x071400 /* Available since 7.20.0 */                                               
                                        case CURLOPT_MAIL_RCPT:
                                                name = "CURLOPT_MAIL_RCPT";
                                                break;
+#endif                                         
 #if LIBCURL_VERSION_NUM >= 0x071503 /* Available since 7.21.3 */
                                        case CURLOPT_RESOLVE:
                                                name = "CURLOPT_RESOLVE";