asyn-ares: restore working with c-ares < 1.6.1

Back in those days the public ares.h header didn't include the
ares_version.h header so it needs to be included here.

Bug: http://curl.haxx.se/bug/view.cgi?id=3577710

diff --git a/lib/asyn-ares.c b/lib/asyn-ares.c
index 5b760128e936c00cfe52e4548995e07dcba5cf92..ee8050a6ba09eda4136df1be20dc16b970fb0aa1 100644 (file)
--- a/lib/asyn-ares.c
+++ b/lib/asyn-ares.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -83,6 +83,8 @@
 #    define CARES_STATICLIB
 #  endif
 #  include <ares.h>
+#  include <ares_version.h> /* really old c-ares didn't include this by
+                               itself */
 
 #if ARES_VERSION >= 0x010500
 /* c-ares 1.5.0 or later, the callback proto is modified */