From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Wed, 25 Aug 2021 14:47:42 +0000 (+0200)
Subject: dnsdist: Fix build on ancient GnuTLS versions (< 3.5.0)
X-Git-Tag: dnsdist-1.7.0-alpha1~23^2~25
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4afbb69c7438b7bebdcf5ff9cf2955222ff2d344;p=thirdparty%2Fpdns.git

dnsdist: Fix build on ancient GnuTLS versions (< 3.5.0)
---

diff --git a/pdns/tcpiohandler.cc b/pdns/tcpiohandler.cc
index 0bc0d7376f..0cac651ce2 100644
--- a/pdns/tcpiohandler.cc
+++ b/pdns/tcpiohandler.cc
@@ -1394,7 +1394,13 @@ public:
       value.size = proto.size();
       values.push_back(value);
     }
-    return gnutls_alpn_set_protocols(d_conn.get(), values.data(), values.size(), GNUTLS_ALPN_MANDATORY);
+    unsigned int flags = 0;
+#if GNUTLS_VERSION_NUMBER >= 0x030500
+    flags |= GNUTLS_ALPN_MANDATORY;
+#elif defined(GNUTLS_ALPN_MAND)
+    flags |= GNUTLS_ALPN_MAND;
+#endif
+    return gnutls_alpn_set_protocols(d_conn.get(), values.data(), values.size(), flags);
   }
 
 private: