From cfd451d47f4df63278f83612b9a5280d1801c5f6 Mon Sep 17 00:00:00 2001
From: FdaSilvaYY <fdasilvayy@gmail.com>
Date: Thu, 4 Aug 2016 00:23:39 +0200
Subject: [PATCH] Improve error message

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
---
 apps/speed.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/apps/speed.c b/apps/speed.c
index ce01a6f3c0..0c996f070c 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -1431,6 +1431,12 @@ int speed_main(int argc, char **argv)
             break;
         case OPT_MB:
             multiblock = 1;
+#ifdef OPENSSL_NO_MULTIBLOCK
+            BIO_printf(bio_err,
+                       "%s: -mb specified but multi-block support is disabled\n",
+                       prog);
+            goto end;
+#endif
             break;
         }
     }
-- 
2.25.1