From 084447e414a6ed992c252f1e143676d3eac37742 Mon Sep 17 00:00:00 2001
From: Yang Tse <yangsita@gmail.com>
Date: Mon, 18 May 2009 00:21:02 +0000
Subject: [PATCH] - Provide in external interface preprocessor symbol
 definitions for   CARES_HAVE_ARES_LIBRARY_INIT and
 CARES_HAVE_ARES_LIBRARY_CLEANUP   to ease the use of new capabilities.

- Move ares_version() prototype to ares.h
---
 ares/Makefile.vc6   |  2 +-
 ares/ares.h         |  6 ++++--
 ares/ares_version.c |  2 +-
 ares/ares_version.h | 15 ++++++---------
 4 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/ares/Makefile.vc6 b/ares/Makefile.vc6
index 7fb2754..949059d 100644
--- a/ares/Makefile.vc6
+++ b/ares/Makefile.vc6
@@ -221,7 +221,7 @@ $(OBJ_DIR)\ares_destroy.obj: ares_destroy.c setup.h setup_once.h ares.h        \
 $(OBJ_DIR)\ares_mkquery.obj: ares_mkquery.c setup.h setup_once.h nameser.h     \
   ares.h ares_dns.h ares_build.h ares_rules.h
 
-$(OBJ_DIR)\ares_version.obj: ares_version.c setup.h setup_once.h               \
+$(OBJ_DIR)\ares_version.obj: ares_version.c setup.h setup_once.h ares.h        \
   ares_version.h ares_build.h ares_rules.h
 
 $(OBJ_DIR)\ares_expand_name.obj: ares_expand_name.c setup.h setup_once.h       \
diff --git a/ares/ares.h b/ares/ares.h
index e942d2d..9d09a7a 100644
--- a/ares/ares.h
+++ b/ares/ares.h
@@ -19,8 +19,9 @@
 #ifndef ARES__H
 #define ARES__H
 
-#include "ares_build.h"  /* c-ares build definitions */
-#include "ares_rules.h"  /* c-ares rules enforcement */
+#include "ares_version.h"  /* c-ares version defines   */
+#include "ares_build.h"    /* c-ares build definitions */
+#include "ares_rules.h"    /* c-ares rules enforcement */
 
 /*
  * Define WIN32 when build target is Win32 API
@@ -248,6 +249,7 @@ typedef int  (*ares_sock_create_callback)(ares_socket_t socket_fd,
 
 int ares_library_init(int flags);
 void ares_library_cleanup(void);
+const char *ares_version(int *version);
 
 int ares_init(ares_channel *channelptr);
 int ares_init_options(ares_channel *channelptr, struct ares_options *options,
diff --git a/ares/ares_version.c b/ares/ares_version.c
index 8aa1952..25f8e77 100644
--- a/ares/ares_version.c
+++ b/ares/ares_version.c
@@ -1,7 +1,7 @@
 /* $Id$ */
 
 #include "setup.h"
-#include "ares_version.h"
+#include "ares.h"
 
 const char *ares_version(int *version)
 {
diff --git a/ares/ares_version.h b/ares/ares_version.h
index 2810845..66d4bcc 100644
--- a/ares/ares_version.h
+++ b/ares/ares_version.h
@@ -11,15 +11,12 @@
                        (ARES_VERSION_PATCH))
 #define ARES_VERSION_STR "1.6.1-CVS"
 
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-const char *ares_version(int *version);
-
-#ifdef  __cplusplus
-}
+#if (ARES_VERSION >= 0x010601)
+#  define CARES_HAVE_ARES_LIBRARY_INIT 1
+#  define CARES_HAVE_ARES_LIBRARY_CLEANUP 1
+#else
+#  undef CARES_HAVE_ARES_LIBRARY_INIT
+#  undef CARES_HAVE_ARES_LIBRARY_CLEANUP
 #endif
 
 #endif
-
-- 
2.7.4