From bdd9ef74e6c90381057ca3f1ece095663e21e59a Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 14 Dec 2018 09:41:53 +0100
Subject: [PATCH] fastoption may not be supported by all curls

---
 src/exchange-lib/curl_defaults.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/exchange-lib/curl_defaults.c b/src/exchange-lib/curl_defaults.c
index 99576308b..cd0f1aeba 100644
--- a/src/exchange-lib/curl_defaults.c
+++ b/src/exchange-lib/curl_defaults.c
@@ -44,11 +44,12 @@ TEL_curl_easy_get (const char *url)
                  curl_easy_setopt (eh,
                                    CURLOPT_ENCODING,
                                    "deflate"));
+#ifdef CURLOPT_TCP_FASTOPEN
   GNUNET_assert (CURLE_OK ==
                  curl_easy_setopt (eh,
                                    CURLOPT_TCP_FASTOPEN,
                                    1L));
-
+#endif
   {
     /* Unfortunately libcurl needs chunk to be alive until after
     curl_easy_perform.  To avoid manual cleanup, we keep