SSL: Fixed OpenSSL builds prior to v1.0.1

Commit ad34a2d5c87c7f relies on definitions that are only present in
OpenSSL v1.0.1 and up. This quick fix allows the builds that use
older versions of OpenSSL to continue building.

diff --git a/lib/ssluse.c b/lib/ssluse.c
index 84fd7373858a35c8c83a8edbee8f2b74c93d9d8d..4d903927c7011152b8328ee3c92db61709832880 100644 (file)
--- a/lib/ssluse.c
+++ b/lib/ssluse.c
@@ -1566,20 +1566,28 @@ ossl_connect_step1(struct connectdata *conn,
   case CURL_SSLVERSION_TLSv1_0:
     ctx_options |= SSL_OP_NO_SSLv2;
     ctx_options |= SSL_OP_NO_SSLv3;
+#if defined(SSL_OP_NO_TLSv1_1)
     ctx_options |= SSL_OP_NO_TLSv1_1;
+#endif
+#if defined(SSL_OP_NO_TLSv1_2)
     ctx_options |= SSL_OP_NO_TLSv1_2;
+#endif
     break;
   case CURL_SSLVERSION_TLSv1_1:
     ctx_options |= SSL_OP_NO_SSLv2;
     ctx_options |= SSL_OP_NO_SSLv3;
     ctx_options |= SSL_OP_NO_TLSv1;
+#if defined(SSL_OP_NO_TLSv1_1)
     ctx_options |= SSL_OP_NO_TLSv1_2;
+#endif
     break;
   case CURL_SSLVERSION_TLSv1_2:
     ctx_options |= SSL_OP_NO_SSLv2;
     ctx_options |= SSL_OP_NO_SSLv3;
     ctx_options |= SSL_OP_NO_TLSv1;
+#if defined(SSL_OP_NO_TLSv1_1)
     ctx_options |= SSL_OP_NO_TLSv1_1;
+#endif
     break;
   }